21049270

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{3137}}^1$

素因数の和:3216

約数の個数: 32

約数和(自身を含む): 42024096

約数和(自身を除く): 20974826

約数列:

[1, 2, 5, 10, 11, 22, 55, 61, 110, 122, 305, 610, 671, 1342, 3137, 3355, 6274, 6710, 15685, 31370, 34507, 69014, 172535, 191357, 345070, 382714, 956785, 1913570, 2104927, 4209854, 10524635, 21049270]

約数ペア:

[(1, 21049270), (2, 10524635), (5, 4209854), (10, 2104927), (11, 1913570), (22, 956785), (55, 382714), (61, 345070), (110, 191357), (122, 172535), (305, 69014), (610, 34507), (671, 31370), (1342, 15685), (3137, 6710), (3355, 6274)]