21082864

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{1163}}^1$

素因数の和:1285

約数の個数: 40

約数和(自身を含む): 45032832

約数和(自身を除く): 23949968

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 103, 176, 206, 412, 824, 1133, 1163, 1648, 2266, 2326, 4532, 4652, 9064, 9304, 12793, 18128, 18608, 25586, 51172, 102344, 119789, 204688, 239578, 479156, 958312, 1317679, 1916624, 2635358, 5270716, 10541432, 21082864]

約数ペア:

[(1, 21082864), (2, 10541432), (4, 5270716), (8, 2635358), (11, 1916624), (16, 1317679), (22, 958312), (44, 479156), (88, 239578), (103, 204688), (176, 119789), (206, 102344), (412, 51172), (824, 25586), (1133, 18608), (1163, 18128), (1648, 12793), (2266, 9304), (2326, 9064), (4532, 4652)]