20120919

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{10529}}^1$

素因数の和:10559

約数の個数: 24

約数和(自身を含む): 33611760

約数和(自身を除く): 13490841

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 147, 273, 637, 1911, 10529, 31587, 73703, 136877, 221109, 410631, 515921, 958139, 1547763, 2874417, 6706973, 20120919]

約数ペア:

[(1, 20120919), (3, 6706973), (7, 2874417), (13, 1547763), (21, 958139), (39, 515921), (49, 410631), (91, 221109), (147, 136877), (273, 73703), (637, 31587), (1911, 10529)]