21443928

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{1889}}^1$

素因数の和:1952

約数の個数: 64

約数和(自身を含む): 59875200

約数和(自身を除く): 38431272

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 22, 24, 33, 43, 44, 66, 86, 88, 129, 132, 172, 258, 264, 344, 473, 516, 946, 1032, 1419, 1889, 1892, 2838, 3778, 3784, 5667, 5676, 7556, 11334, 11352, 15112, 20779, 22668, 41558, 45336, 62337, 81227, 83116, 124674, 162454, 166232, 243681, 249348, 324908, 487362, 498696, 649816, 893497, 974724, 1786994, 1949448, 2680491, 3573988, 5360982, 7147976, 10721964, 21443928]

約数ペア:

[(1, 21443928), (2, 10721964), (3, 7147976), (4, 5360982), (6, 3573988), (8, 2680491), (11, 1949448), (12, 1786994), (22, 974724), (24, 893497), (33, 649816), (43, 498696), (44, 487362), (66, 324908), (86, 249348), (88, 243681), (129, 166232), (132, 162454), (172, 124674), (258, 83116), (264, 81227), (344, 62337), (473, 45336), (516, 41558), (946, 22668), (1032, 20779), (1419, 15112), (1889, 11352), (1892, 11334), (2838, 7556), (3778, 5676), (3784, 5667)]