18781308

素因数分解:

$2^2\times 3^4\times 7^3\times {\mathrm{13}}^2$

素因数の和:63

約数の個数: 180

約数和(自身を含む): 62000400

約数和(自身を除く): 43219092

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 13, 14, 18, 21, 26, 27, 28, 36, 39, 42, 49, 52, 54, 63, 78, 81, 84, 91, 98, 108, 117, 126, 147, 156, 162, 169, 182, 189, 196, 234, 252, 273, 294, 324, 338, 343, 351, 364, 378, 441, 468, 507, 546, 567, 588, 637, 676, 686, 702, 756, 819, 882, 1014, 1029, 1053, 1092, 1134, 1183, 1274, 1323, 1372, 1404, 1521, 1638, 1764, 1911, 2028, 2058, 2106, 2268, 2366, 2457, 2548, 2646, 3042, 3087, 3276, 3549, 3822, 3969, 4116, 4212, 4459, 4563, 4732, 4914, 5292, 5733, 6084, 6174, 7098, 7371, 7644, 7938, 8281, 8918, 9126, 9261, 9828, 10647, 11466, 12348, 13377, 13689, 14196, 14742, 15876, 16562, 17199, 17836, 18252, 18522, 21294, 22932, 24843, 26754, 27378, 27783, 29484, 31941, 33124, 34398, 37044, 40131, 42588, 49686, 51597, 53508, 54756, 55566, 57967, 63882, 68796, 74529, 80262, 95823, 99372, 103194, 111132, 115934, 120393, 127764, 149058, 160524, 173901, 191646, 206388, 223587, 231868, 240786, 298116, 347802, 361179, 383292, 447174, 481572, 521703, 670761, 695604, 722358, 894348, 1043406, 1341522, 1444716, 1565109, 2086812, 2683044, 3130218, 4695327, 6260436, 9390654, 18781308]

約数ペア:

[(1, 18781308), (2, 9390654), (3, 6260436), (4, 4695327), (6, 3130218), (7, 2683044), (9, 2086812), (12, 1565109), (13, 1444716), (14, 1341522), (18, 1043406), (21, 894348), (26, 722358), (27, 695604), (28, 670761), (36, 521703), (39, 481572), (42, 447174), (49, 383292), (52, 361179), (54, 347802), (63, 298116), (78, 240786), (81, 231868), (84, 223587), (91, 206388), (98, 191646), (108, 173901), (117, 160524), (126, 149058), (147, 127764), (156, 120393), (162, 115934), (169, 111132), (182, 103194), (189, 99372), (196, 95823), (234, 80262), (252, 74529), (273, 68796), (294, 63882), (324, 57967), (338, 55566), (343, 54756), (351, 53508), (364, 51597), (378, 49686), (441, 42588), (468, 40131), (507, 37044), (546, 34398), (567, 33124), (588, 31941), (637, 29484), (676, 27783), (686, 27378), (702, 26754), (756, 24843), (819, 22932), (882, 21294), (1014, 18522), (1029, 18252), (1053, 17836), (1092, 17199), (1134, 16562), (1183, 15876), (1274, 14742), (1323, 14196), (1372, 13689), (1404, 13377), (1521, 12348), (1638, 11466), (1764, 10647), (1911, 9828), (2028, 9261), (2058, 9126), (2106, 8918), (2268, 8281), (2366, 7938), (2457, 7644), (2548, 7371), (2646, 7098), (3042, 6174), (3087, 6084), (3276, 5733), (3549, 5292), (3822, 4914), (3969, 4732), (4116, 4563), (4212, 4459)]