21615204

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{138559}}^1$

素因数の和:138579

約数の個数: 24

約数和(自身を含む): 54315520

約数和(自身を除く): 32700316

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 138559, 277118, 415677, 554236, 831354, 1662708, 1801267, 3602534, 5403801, 7205068, 10807602, 21615204]

約数ペア:

[(1, 21615204), (2, 10807602), (3, 7205068), (4, 5403801), (6, 3602534), (12, 1801267), (13, 1662708), (26, 831354), (39, 554236), (52, 415677), (78, 277118), (156, 138559)]