20420946

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{13}}^2\times {\mathrm{137}}^1$

素因数の和:185

約数の個数: 108

約数和(自身を含む): 56139642

約数和(自身を除く): 35718696

約数列:

[1, 2, 3, 6, 7, 9, 13, 14, 18, 21, 26, 39, 42, 49, 63, 78, 91, 98, 117, 126, 137, 147, 169, 182, 234, 273, 274, 294, 338, 411, 441, 507, 546, 637, 819, 822, 882, 959, 1014, 1183, 1233, 1274, 1521, 1638, 1781, 1911, 1918, 2366, 2466, 2877, 3042, 3549, 3562, 3822, 5343, 5733, 5754, 6713, 7098, 8281, 8631, 10647, 10686, 11466, 12467, 13426, 16029, 16562, 17262, 20139, 21294, 23153, 24843, 24934, 32058, 37401, 40278, 46306, 49686, 60417, 69459, 74529, 74802, 87269, 112203, 120834, 138918, 149058, 162071, 174538, 208377, 224406, 261807, 324142, 416754, 486213, 523614, 785421, 972426, 1134497, 1458639, 1570842, 2268994, 2917278, 3403491, 6806982, 10210473, 20420946]

約数ペア:

[(1, 20420946), (2, 10210473), (3, 6806982), (6, 3403491), (7, 2917278), (9, 2268994), (13, 1570842), (14, 1458639), (18, 1134497), (21, 972426), (26, 785421), (39, 523614), (42, 486213), (49, 416754), (63, 324142), (78, 261807), (91, 224406), (98, 208377), (117, 174538), (126, 162071), (137, 149058), (147, 138918), (169, 120834), (182, 112203), (234, 87269), (273, 74802), (274, 74529), (294, 69459), (338, 60417), (411, 49686), (441, 46306), (507, 40278), (546, 37401), (637, 32058), (819, 24934), (822, 24843), (882, 23153), (959, 21294), (1014, 20139), (1183, 17262), (1233, 16562), (1274, 16029), (1521, 13426), (1638, 12467), (1781, 11466), (1911, 10686), (1918, 10647), (2366, 8631), (2466, 8281), (2877, 7098), (3042, 6713), (3549, 5754), (3562, 5733), (3822, 5343)]