21192327

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{349}}^1$

素因数の和:544

約数の個数: 32

約数和(自身を含む): 34104000

約数和(自身を除く): 12911673

約数列:

[1, 3, 9, 13, 27, 39, 117, 173, 349, 351, 519, 1047, 1557, 2249, 3141, 4537, 4671, 6747, 9423, 13611, 20241, 40833, 60377, 60723, 122499, 181131, 543393, 784901, 1630179, 2354703, 7064109, 21192327]

約数ペア:

[(1, 21192327), (3, 7064109), (9, 2354703), (13, 1630179), (27, 784901), (39, 543393), (117, 181131), (173, 122499), (349, 60723), (351, 60377), (519, 40833), (1047, 20241), (1557, 13611), (2249, 9423), (3141, 6747), (4537, 4671)]