21755630

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{4523}}^1$

素因数の和:4580

約数の個数: 32

約数和(自身を含む): 43321824

約数和(自身を除く): 21566194

約数列:

[1, 2, 5, 10, 13, 26, 37, 65, 74, 130, 185, 370, 481, 962, 2405, 4523, 4810, 9046, 22615, 45230, 58799, 117598, 167351, 293995, 334702, 587990, 836755, 1673510, 2175563, 4351126, 10877815, 21755630]

約数ペア:

[(1, 21755630), (2, 10877815), (5, 4351126), (10, 2175563), (13, 1673510), (26, 836755), (37, 587990), (65, 334702), (74, 293995), (130, 167351), (185, 117598), (370, 58799), (481, 45230), (962, 22615), (2405, 9046), (4523, 4810)]