21731516

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{3917}}^1$

素因数の和:4013

約数の個数: 24

約数和(自身を含む): 40590480

約数和(自身を除く): 18858964

約数列:

[1, 2, 4, 19, 38, 73, 76, 146, 292, 1387, 2774, 3917, 5548, 7834, 15668, 74423, 148846, 285941, 297692, 571882, 1143764, 5432879, 10865758, 21731516]

約数ペア:

[(1, 21731516), (2, 10865758), (4, 5432879), (19, 1143764), (38, 571882), (73, 297692), (76, 285941), (146, 148846), (292, 74423), (1387, 15668), (2774, 7834), (3917, 5548)]