21129130

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{11299}}^1$

素因数の和:11334

約数の個数: 32

約数和(自身を含む): 43934400

約数和(自身を除く): 22805270

約数列:

[1, 2, 5, 10, 11, 17, 22, 34, 55, 85, 110, 170, 187, 374, 935, 1870, 11299, 22598, 56495, 112990, 124289, 192083, 248578, 384166, 621445, 960415, 1242890, 1920830, 2112913, 4225826, 10564565, 21129130]

約数ペア:

[(1, 21129130), (2, 10564565), (5, 4225826), (10, 2112913), (11, 1920830), (17, 1242890), (22, 960415), (34, 621445), (55, 384166), (85, 248578), (110, 192083), (170, 124289), (187, 112990), (374, 56495), (935, 22598), (1870, 11299)]