21123612

素因数分解:

$2^2\times 3^3\times {\mathrm{317}}^1\times {\mathrm{617}}^1$

素因数の和:947

約数の個数: 48

約数和(自身を含む): 55026720

約数和(自身を除く): 33903108

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108, 317, 617, 634, 951, 1234, 1268, 1851, 1902, 2468, 2853, 3702, 3804, 5553, 5706, 7404, 8559, 11106, 11412, 16659, 17118, 22212, 33318, 34236, 66636, 195589, 391178, 586767, 782356, 1173534, 1760301, 2347068, 3520602, 5280903, 7041204, 10561806, 21123612]

約数ペア:

[(1, 21123612), (2, 10561806), (3, 7041204), (4, 5280903), (6, 3520602), (9, 2347068), (12, 1760301), (18, 1173534), (27, 782356), (36, 586767), (54, 391178), (108, 195589), (317, 66636), (617, 34236), (634, 33318), (951, 22212), (1234, 17118), (1268, 16659), (1851, 11412), (1902, 11106), (2468, 8559), (2853, 7404), (3702, 5706), (3804, 5553)]