21135106

素因数分解:

$2^1\times {\mathrm{19}}^2\times {\mathrm{73}}^1\times {\mathrm{401}}^1$

素因数の和:514

約数の個数: 24

約数和(自身を含む): 34001964

約数和(自身を除く): 12866858

約数列:

[1, 2, 19, 38, 73, 146, 361, 401, 722, 802, 1387, 2774, 7619, 15238, 26353, 29273, 52706, 58546, 144761, 289522, 556187, 1112374, 10567553, 21135106]

約数ペア:

[(1, 21135106), (2, 10567553), (19, 1112374), (38, 556187), (73, 289522), (146, 144761), (361, 58546), (401, 52706), (722, 29273), (802, 26353), (1387, 15238), (2774, 7619)]