21421310

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{1607}}^1$

素因数の和:1688

約数の個数: 32

約数和(自身を含む): 40753152

約数和(自身を除く): 19331842

約数列:

[1, 2, 5, 10, 31, 43, 62, 86, 155, 215, 310, 430, 1333, 1607, 2666, 3214, 6665, 8035, 13330, 16070, 49817, 69101, 99634, 138202, 249085, 345505, 498170, 691010, 2142131, 4284262, 10710655, 21421310]

約数ペア:

[(1, 21421310), (2, 10710655), (5, 4284262), (10, 2142131), (31, 691010), (43, 498170), (62, 345505), (86, 249085), (155, 138202), (215, 99634), (310, 69101), (430, 49817), (1333, 16070), (1607, 13330), (2666, 8035), (3214, 6665)]