21003854

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{163}}^1\times {\mathrm{3391}}^1$

素因数の和:3575

約数の個数: 16

約数和(自身を含む): 33377280

約数和(自身を除く): 12373426

約数列:

[1, 2, 19, 38, 163, 326, 3097, 3391, 6194, 6782, 64429, 128858, 552733, 1105466, 10501927, 21003854]

約数ペア:

[(1, 21003854), (2, 10501927), (19, 1105466), (38, 552733), (163, 128858), (326, 64429), (3097, 6782), (3391, 6194)]