19718914

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{557}}^1\times {\mathrm{571}}^1$

素因数の和:1161

約数の個数: 16

約数和(自身を含む): 30640896

約数和(自身を除く): 10921982

約数列:

[1, 2, 31, 62, 557, 571, 1114, 1142, 17267, 17701, 34534, 35402, 318047, 636094, 9859457, 19718914]

約数ペア:

[(1, 19718914), (2, 9859457), (31, 636094), (62, 318047), (557, 35402), (571, 34534), (1114, 17701), (1142, 17267)]