21240472

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{4091}}^1$

素因数の和:4167

約数の個数: 32

約数和(自身を含む): 44193600

約数和(自身を除く): 22953128

約数列:

[1, 2, 4, 8, 11, 22, 44, 59, 88, 118, 236, 472, 649, 1298, 2596, 4091, 5192, 8182, 16364, 32728, 45001, 90002, 180004, 241369, 360008, 482738, 965476, 1930952, 2655059, 5310118, 10620236, 21240472]

約数ペア:

[(1, 21240472), (2, 10620236), (4, 5310118), (8, 2655059), (11, 1930952), (22, 965476), (44, 482738), (59, 360008), (88, 241369), (118, 180004), (236, 90002), (472, 45001), (649, 32728), (1298, 16364), (2596, 8182), (4091, 5192)]