21249296

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{69899}}^1$

素因数の和:69926

約数の個数: 20

約数和(自身を含む): 43338000

約数和(自身を除く): 22088704

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 69899, 139798, 279596, 559192, 1118384, 1328081, 2656162, 5312324, 10624648, 21249296]

約数ペア:

[(1, 21249296), (2, 10624648), (4, 5312324), (8, 2656162), (16, 1328081), (19, 1118384), (38, 559192), (76, 279596), (152, 139798), (304, 69899)]