21070412

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{1657}}^1$

素因数の和:1706

約数の個数: 36

約数和(自身を含む): 42756504

約数和(自身を除く): 21686092

約数列:

[1, 2, 4, 11, 17, 22, 34, 44, 68, 187, 289, 374, 578, 748, 1156, 1657, 3179, 3314, 6358, 6628, 12716, 18227, 28169, 36454, 56338, 72908, 112676, 309859, 478873, 619718, 957746, 1239436, 1915492, 5267603, 10535206, 21070412]

約数ペア:

[(1, 21070412), (2, 10535206), (4, 5267603), (11, 1915492), (17, 1239436), (22, 957746), (34, 619718), (44, 478873), (68, 309859), (187, 112676), (289, 72908), (374, 56338), (578, 36454), (748, 28169), (1156, 18227), (1657, 12716), (3179, 6628), (3314, 6358)]