21757020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{113}}^1\times {\mathrm{3209}}^1$

素因数の和:3334

約数の個数: 48

約数和(自身を含む): 61477920

約数和(自身を除く): 39720900

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 113, 226, 339, 452, 565, 678, 1130, 1356, 1695, 2260, 3209, 3390, 6418, 6780, 9627, 12836, 16045, 19254, 32090, 38508, 48135, 64180, 96270, 192540, 362617, 725234, 1087851, 1450468, 1813085, 2175702, 3626170, 4351404, 5439255, 7252340, 10878510, 21757020]

約数ペア:

[(1, 21757020), (2, 10878510), (3, 7252340), (4, 5439255), (5, 4351404), (6, 3626170), (10, 2175702), (12, 1813085), (15, 1450468), (20, 1087851), (30, 725234), (60, 362617), (113, 192540), (226, 96270), (339, 64180), (452, 48135), (565, 38508), (678, 32090), (1130, 19254), (1356, 16045), (1695, 12836), (2260, 9627), (3209, 6780), (3390, 6418)]