21555010

素因数分解:

$2^1\times 5^1\times {\mathrm{1213}}^1\times {\mathrm{1777}}^1$

素因数の和:2997

約数の個数: 16

約数和(自身を含む): 38852856

約数和(自身を除く): 17297846

約数列:

[1, 2, 5, 10, 1213, 1777, 2426, 3554, 6065, 8885, 12130, 17770, 2155501, 4311002, 10777505, 21555010]

約数ペア:

[(1, 21555010), (2, 10777505), (5, 4311002), (10, 2155501), (1213, 17770), (1777, 12130), (2426, 8885), (3554, 6065)]