21330910

素因数分解:

$2^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{167}}^1\times {\mathrm{241}}^1$

素因数の和:468

約数の個数: 32

約数和(自身を含む): 39517632

約数和(自身を除く): 18186722

約数列:

[1, 2, 5, 10, 53, 106, 167, 241, 265, 334, 482, 530, 835, 1205, 1670, 2410, 8851, 12773, 17702, 25546, 40247, 44255, 63865, 80494, 88510, 127730, 201235, 402470, 2133091, 4266182, 10665455, 21330910]

約数ペア:

[(1, 21330910), (2, 10665455), (5, 4266182), (10, 2133091), (53, 402470), (106, 201235), (167, 127730), (241, 88510), (265, 80494), (334, 63865), (482, 44255), (530, 40247), (835, 25546), (1205, 17702), (1670, 12773), (2410, 8851)]