21209010

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{13339}}^1$

素因数の和:13402

約数の個数: 32

約数和(自身を含む): 51865920

約数和(自身を除く): 30656910

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 53, 106, 159, 265, 318, 530, 795, 1590, 13339, 26678, 40017, 66695, 80034, 133390, 200085, 400170, 706967, 1413934, 2120901, 3534835, 4241802, 7069670, 10604505, 21209010]

約数ペア:

[(1, 21209010), (2, 10604505), (3, 7069670), (5, 4241802), (6, 3534835), (10, 2120901), (15, 1413934), (30, 706967), (53, 400170), (106, 200085), (159, 133390), (265, 80034), (318, 66695), (530, 40017), (795, 26678), (1590, 13339)]