21081775690

素因数分解:

$2^1\times 5^1\times {\mathrm{5647}}^1\times {\mathrm{373327}}^1$

素因数の和:378981

約数の個数: 16

約数和(自身を含む): 37954017792

約数和(自身を除く): 16872242102

約数列:

[1, 2, 5, 10, 5647, 11294, 28235, 56470, 373327, 746654, 1866635, 3733270, 2108177569, 4216355138, 10540887845, 21081775690]

約数ペア:

[(1, 21081775690), (2, 10540887845), (5, 4216355138), (10, 2108177569), (5647, 3733270), (11294, 1866635), (28235, 746654), (56470, 373327)]