21015445

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{449}}^1$

素因数の和:525

約数の個数: 32

約数和(自身を含む): 29548800

約数和(自身を除く): 8533355

約数列:

[1, 5, 11, 23, 37, 55, 115, 185, 253, 407, 449, 851, 1265, 2035, 2245, 4255, 4939, 9361, 10327, 16613, 24695, 46805, 51635, 83065, 113597, 182743, 382099, 567985, 913715, 1910495, 4203089, 21015445]

約数ペア:

[(1, 21015445), (5, 4203089), (11, 1910495), (23, 913715), (37, 567985), (55, 382099), (115, 182743), (185, 113597), (253, 83065), (407, 51635), (449, 46805), (851, 24695), (1265, 16613), (2035, 10327), (2245, 9361), (4255, 4939)]