21896030

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{3917}}^1$

素因数の和:3980

約数の個数: 32

約数和(自身を含む): 43442784

約数和(自身を除く): 21546754

約数列:

[1, 2, 5, 10, 13, 26, 43, 65, 86, 130, 215, 430, 559, 1118, 2795, 3917, 5590, 7834, 19585, 39170, 50921, 101842, 168431, 254605, 336862, 509210, 842155, 1684310, 2189603, 4379206, 10948015, 21896030]

約数ペア:

[(1, 21896030), (2, 10948015), (5, 4379206), (10, 2189603), (13, 1684310), (26, 842155), (43, 509210), (65, 336862), (86, 254605), (130, 168431), (215, 101842), (430, 50921), (559, 39170), (1118, 19585), (2795, 7834), (3917, 5590)]