21065148

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{103}}^1$

素因数の和:168

約数の個数: 144

約数和(自身を含む): 63598080

約数和(自身を除く): 42532932

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 19, 23, 26, 36, 38, 39, 46, 52, 57, 69, 76, 78, 92, 103, 114, 117, 138, 156, 171, 206, 207, 228, 234, 247, 276, 299, 309, 342, 412, 414, 437, 468, 494, 598, 618, 684, 741, 828, 874, 897, 927, 988, 1196, 1236, 1311, 1339, 1482, 1748, 1794, 1854, 1957, 2223, 2369, 2622, 2678, 2691, 2964, 3588, 3708, 3914, 3933, 4017, 4446, 4738, 5244, 5356, 5382, 5681, 5871, 7107, 7828, 7866, 8034, 8892, 9476, 10764, 11362, 11742, 12051, 14214, 15732, 16068, 17043, 17613, 21321, 22724, 23484, 24102, 25441, 28428, 30797, 34086, 35226, 42642, 45011, 48204, 50882, 51129, 61594, 68172, 70452, 76323, 85284, 90022, 92391, 101764, 102258, 123188, 135033, 152646, 180044, 184782, 204516, 228969, 270066, 277173, 305292, 369564, 405099, 457938, 540132, 554346, 585143, 810198, 915876, 1108692, 1170286, 1620396, 1755429, 2340572, 3510858, 5266287, 7021716, 10532574, 21065148]

約数ペア:

[(1, 21065148), (2, 10532574), (3, 7021716), (4, 5266287), (6, 3510858), (9, 2340572), (12, 1755429), (13, 1620396), (18, 1170286), (19, 1108692), (23, 915876), (26, 810198), (36, 585143), (38, 554346), (39, 540132), (46, 457938), (52, 405099), (57, 369564), (69, 305292), (76, 277173), (78, 270066), (92, 228969), (103, 204516), (114, 184782), (117, 180044), (138, 152646), (156, 135033), (171, 123188), (206, 102258), (207, 101764), (228, 92391), (234, 90022), (247, 85284), (276, 76323), (299, 70452), (309, 68172), (342, 61594), (412, 51129), (414, 50882), (437, 48204), (468, 45011), (494, 42642), (598, 35226), (618, 34086), (684, 30797), (741, 28428), (828, 25441), (874, 24102), (897, 23484), (927, 22724), (988, 21321), (1196, 17613), (1236, 17043), (1311, 16068), (1339, 15732), (1482, 14214), (1748, 12051), (1794, 11742), (1854, 11362), (1957, 10764), (2223, 9476), (2369, 8892), (2622, 8034), (2678, 7866), (2691, 7828), (2964, 7107), (3588, 5871), (3708, 5681), (3914, 5382), (3933, 5356), (4017, 5244), (4446, 4738)]