21492172

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{179}}^1\times {\mathrm{2309}}^1$

素因数の和:2505

約数の個数: 24

約数和(自身を含む): 40748400

約数和(自身を除く): 19256228

約数列:

[1, 2, 4, 13, 26, 52, 179, 358, 716, 2309, 2327, 4618, 4654, 9236, 9308, 30017, 60034, 120068, 413311, 826622, 1653244, 5373043, 10746086, 21492172]

約数ペア:

[(1, 21492172), (2, 10746086), (4, 5373043), (13, 1653244), (26, 826622), (52, 413311), (179, 120068), (358, 60034), (716, 30017), (2309, 9308), (2327, 9236), (4618, 4654)]