19515998

素因数分解:

$2^1\times {\mathrm{47}}^1\times {\mathrm{191}}^1\times {\mathrm{1087}}^1$

素因数の和:1327

約数の個数: 16

約数和(自身を含む): 30081024

約数和(自身を除く): 10565026

約数列:

[1, 2, 47, 94, 191, 382, 1087, 2174, 8977, 17954, 51089, 102178, 207617, 415234, 9757999, 19515998]

約数ペア:

[(1, 19515998), (2, 9757999), (47, 415234), (94, 207617), (191, 102178), (382, 51089), (1087, 17954), (2174, 8977)]