65260251

素因数分解:

$3^2\times 7^1\times {\mathrm{251}}^1\times {\mathrm{4127}}^1$

素因数の和:4391

約数の個数: 24

約数和(自身を含む): 108186624

約数和(自身を除く): 42926373

約数列:

[1, 3, 7, 9, 21, 63, 251, 753, 1757, 2259, 4127, 5271, 12381, 15813, 28889, 37143, 86667, 260001, 1035877, 3107631, 7251139, 9322893, 21753417, 65260251]

約数ペア:

[(1, 65260251), (3, 21753417), (7, 9322893), (9, 7251139), (21, 3107631), (63, 1035877), (251, 260001), (753, 86667), (1757, 37143), (2259, 28889), (4127, 15813), (5271, 12381)]