21816780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{293}}^1$

素因数の和:395

約数の個数: 96

約数和(自身を含む): 65790144

約数和(自身を除く): 43973364

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 73, 85, 102, 146, 170, 204, 219, 255, 292, 293, 340, 365, 438, 510, 586, 730, 876, 879, 1020, 1095, 1172, 1241, 1460, 1465, 1758, 2190, 2482, 2930, 3516, 3723, 4380, 4395, 4964, 4981, 5860, 6205, 7446, 8790, 9962, 12410, 14892, 14943, 17580, 18615, 19924, 21389, 24820, 24905, 29886, 37230, 42778, 49810, 59772, 64167, 74460, 74715, 85556, 99620, 106945, 128334, 149430, 213890, 256668, 298860, 320835, 363613, 427780, 641670, 727226, 1090839, 1283340, 1454452, 1818065, 2181678, 3636130, 4363356, 5454195, 7272260, 10908390, 21816780]

約数ペア:

[(1, 21816780), (2, 10908390), (3, 7272260), (4, 5454195), (5, 4363356), (6, 3636130), (10, 2181678), (12, 1818065), (15, 1454452), (17, 1283340), (20, 1090839), (30, 727226), (34, 641670), (51, 427780), (60, 363613), (68, 320835), (73, 298860), (85, 256668), (102, 213890), (146, 149430), (170, 128334), (204, 106945), (219, 99620), (255, 85556), (292, 74715), (293, 74460), (340, 64167), (365, 59772), (438, 49810), (510, 42778), (586, 37230), (730, 29886), (876, 24905), (879, 24820), (1020, 21389), (1095, 19924), (1172, 18615), (1241, 17580), (1460, 14943), (1465, 14892), (1758, 12410), (2190, 9962), (2482, 8790), (2930, 7446), (3516, 6205), (3723, 5860), (4380, 4981), (4395, 4964)]