21281730

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{311}}^1\times {\mathrm{2281}}^1$

素因数の和:2602

約数の個数: 32

約数和(自身を含む): 51262848

約数和(自身を除く): 29981118

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 311, 622, 933, 1555, 1866, 2281, 3110, 4562, 4665, 6843, 9330, 11405, 13686, 22810, 34215, 68430, 709391, 1418782, 2128173, 3546955, 4256346, 7093910, 10640865, 21281730]

約数ペア:

[(1, 21281730), (2, 10640865), (3, 7093910), (5, 4256346), (6, 3546955), (10, 2128173), (15, 1418782), (30, 709391), (311, 68430), (622, 34215), (933, 22810), (1555, 13686), (1866, 11405), (2281, 9330), (3110, 6843), (4562, 4665)]