21034390

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{239}}^1\times {\mathrm{677}}^1$

素因数の和:936

約数の個数: 32

約数和(自身を含む): 41005440

約数和(自身を除く): 19971050

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 239, 478, 677, 1195, 1354, 2390, 3107, 3385, 6214, 6770, 8801, 15535, 17602, 31070, 44005, 88010, 161803, 323606, 809015, 1618030, 2103439, 4206878, 10517195, 21034390]

約数ペア:

[(1, 21034390), (2, 10517195), (5, 4206878), (10, 2103439), (13, 1618030), (26, 809015), (65, 323606), (130, 161803), (239, 88010), (478, 44005), (677, 31070), (1195, 17602), (1354, 15535), (2390, 8801), (3107, 6770), (3385, 6214)]