21761974

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{569}}^1\times {\mathrm{1471}}^1$

素因数の和:2055

約数の個数: 16

約数和(自身を含む): 35239680

約数和(自身を除く): 13477706

約数列:

[1, 2, 13, 26, 569, 1138, 1471, 2942, 7397, 14794, 19123, 38246, 836999, 1673998, 10880987, 21761974]

約数ペア:

[(1, 21761974), (2, 10880987), (13, 1673998), (26, 836999), (569, 38246), (1138, 19123), (1471, 14794), (2942, 7397)]