20725731

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{3769}}^1$

素因数の和:3835

約数の個数: 24

約数和(自身を含む): 32934720

約数和(自身を除く): 12208989

約数列:

[1, 3, 9, 13, 39, 47, 117, 141, 423, 611, 1833, 3769, 5499, 11307, 33921, 48997, 146991, 177143, 440973, 531429, 1594287, 2302859, 6908577, 20725731]

約数ペア:

[(1, 20725731), (3, 6908577), (9, 2302859), (13, 1594287), (39, 531429), (47, 440973), (117, 177143), (141, 146991), (423, 48997), (611, 33921), (1833, 11307), (3769, 5499)]