21301124

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{131}}^1$

素因数の和:260

約数の個数: 48

約数和(自身を含む): 41912640

約数和(自身を除く): 20611516

約数列:

[1, 2, 4, 13, 26, 52, 53, 59, 106, 118, 131, 212, 236, 262, 524, 689, 767, 1378, 1534, 1703, 2756, 3068, 3127, 3406, 6254, 6812, 6943, 7729, 12508, 13886, 15458, 27772, 30916, 40651, 81302, 90259, 100477, 162604, 180518, 200954, 361036, 401908, 409637, 819274, 1638548, 5325281, 10650562, 21301124]

約数ペア:

[(1, 21301124), (2, 10650562), (4, 5325281), (13, 1638548), (26, 819274), (52, 409637), (53, 401908), (59, 361036), (106, 200954), (118, 180518), (131, 162604), (212, 100477), (236, 90259), (262, 81302), (524, 40651), (689, 30916), (767, 27772), (1378, 15458), (1534, 13886), (1703, 12508), (2756, 7729), (3068, 6943), (3127, 6812), (3406, 6254)]