21813729

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{2377}}^1$

素因数の和:2429

約数の個数: 32

約数和(自身を含む): 36526080

約数和(自身を除く): 14712351

約数列:

[1, 3, 7, 19, 21, 23, 57, 69, 133, 161, 399, 437, 483, 1311, 2377, 3059, 7131, 9177, 16639, 45163, 49917, 54671, 135489, 164013, 316141, 382697, 948423, 1038749, 1148091, 3116247, 7271243, 21813729]

約数ペア:

[(1, 21813729), (3, 7271243), (7, 3116247), (19, 1148091), (21, 1038749), (23, 948423), (57, 382697), (69, 316141), (133, 164013), (161, 135489), (399, 54671), (437, 49917), (483, 45163), (1311, 16639), (2377, 9177), (3059, 7131)]