21313430

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{197}}^1\times {\mathrm{349}}^1$

素因数の和:584

約数の個数: 32

約数和(自身を含む): 39916800

約数和(自身を除く): 18603370

約数列:

[1, 2, 5, 10, 31, 62, 155, 197, 310, 349, 394, 698, 985, 1745, 1970, 3490, 6107, 10819, 12214, 21638, 30535, 54095, 61070, 68753, 108190, 137506, 343765, 687530, 2131343, 4262686, 10656715, 21313430]

約数ペア:

[(1, 21313430), (2, 10656715), (5, 4262686), (10, 2131343), (31, 687530), (62, 343765), (155, 137506), (197, 108190), (310, 68753), (349, 61070), (394, 54095), (698, 30535), (985, 21638), (1745, 12214), (1970, 10819), (3490, 6107)]