21756554908

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{571}}^1\times {\mathrm{16339}}^1$

素因数の和:16978

約数の個数: 48

約数和(自身を含む): 42395633280

約数和(自身を除く): 20639078372

約数列:

[1, 2, 4, 11, 22, 44, 53, 106, 212, 571, 583, 1142, 1166, 2284, 2332, 6281, 12562, 16339, 25124, 30263, 32678, 60526, 65356, 121052, 179729, 332893, 359458, 665786, 718916, 865967, 1331572, 1731934, 3463868, 9329569, 9525637, 18659138, 19051274, 37318276, 38102548, 102625259, 205250518, 410501036, 494467157, 988934314, 1977868628, 5439138727, 10878277454, 21756554908]

約数ペア:

[(1, 21756554908), (2, 10878277454), (4, 5439138727), (11, 1977868628), (22, 988934314), (44, 494467157), (53, 410501036), (106, 205250518), (212, 102625259), (571, 38102548), (583, 37318276), (1142, 19051274), (1166, 18659138), (2284, 9525637), (2332, 9329569), (6281, 3463868), (12562, 1731934), (16339, 1331572), (25124, 865967), (30263, 718916), (32678, 665786), (60526, 359458), (65356, 332893), (121052, 179729)]