21673290

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{317}}^1$

素因数の和:423

約数の個数: 64

約数和(自身を含む): 54400896

約数和(自身を除く): 32727606

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 43, 53, 86, 106, 129, 159, 215, 258, 265, 317, 318, 430, 530, 634, 645, 795, 951, 1290, 1585, 1590, 1902, 2279, 3170, 4558, 4755, 6837, 9510, 11395, 13631, 13674, 16801, 22790, 27262, 33602, 34185, 40893, 50403, 68155, 68370, 81786, 84005, 100806, 136310, 168010, 204465, 252015, 408930, 504030, 722443, 1444886, 2167329, 3612215, 4334658, 7224430, 10836645, 21673290]

約数ペア:

[(1, 21673290), (2, 10836645), (3, 7224430), (5, 4334658), (6, 3612215), (10, 2167329), (15, 1444886), (30, 722443), (43, 504030), (53, 408930), (86, 252015), (106, 204465), (129, 168010), (159, 136310), (215, 100806), (258, 84005), (265, 81786), (317, 68370), (318, 68155), (430, 50403), (530, 40893), (634, 34185), (645, 33602), (795, 27262), (951, 22790), (1290, 16801), (1585, 13674), (1590, 13631), (1902, 11395), (2279, 9510), (3170, 6837), (4558, 4755)]