21081490

素因数分解:

$2^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{227}}^1\times {\mathrm{251}}^1$

素因数の和:522

約数の個数: 32

約数和(自身を含む): 39299904

約数和(自身を除く): 18218414

約数列:

[1, 2, 5, 10, 37, 74, 185, 227, 251, 370, 454, 502, 1135, 1255, 2270, 2510, 8399, 9287, 16798, 18574, 41995, 46435, 56977, 83990, 92870, 113954, 284885, 569770, 2108149, 4216298, 10540745, 21081490]

約数ペア:

[(1, 21081490), (2, 10540745), (5, 4216298), (10, 2108149), (37, 569770), (74, 284885), (185, 113954), (227, 92870), (251, 83990), (370, 56977), (454, 46435), (502, 41995), (1135, 18574), (1255, 16798), (2270, 9287), (2510, 8399)]