21048808

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{12589}}^1$

素因数の和:12625

約数の個数: 32

約数和(自身を含む): 45324000

約数和(自身を除く): 24275192

約数列:

[1, 2, 4, 8, 11, 19, 22, 38, 44, 76, 88, 152, 209, 418, 836, 1672, 12589, 25178, 50356, 100712, 138479, 239191, 276958, 478382, 553916, 956764, 1107832, 1913528, 2631101, 5262202, 10524404, 21048808]

約数ペア:

[(1, 21048808), (2, 10524404), (4, 5262202), (8, 2631101), (11, 1913528), (19, 1107832), (22, 956764), (38, 553916), (44, 478382), (76, 276958), (88, 239191), (152, 138479), (209, 100712), (418, 50356), (836, 25178), (1672, 12589)]