20497584

素因数分解:

$2^4\times 3^1\times {\mathrm{43}}^1\times {\mathrm{9931}}^1$

素因数の和:9985

約数の個数: 40

約数和(自身を含む): 54188992

約数和(自身を除く): 33691408

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 43, 48, 86, 129, 172, 258, 344, 516, 688, 1032, 2064, 9931, 19862, 29793, 39724, 59586, 79448, 119172, 158896, 238344, 427033, 476688, 854066, 1281099, 1708132, 2562198, 3416264, 5124396, 6832528, 10248792, 20497584]

約数ペア:

[(1, 20497584), (2, 10248792), (3, 6832528), (4, 5124396), (6, 3416264), (8, 2562198), (12, 1708132), (16, 1281099), (24, 854066), (43, 476688), (48, 427033), (86, 238344), (129, 158896), (172, 119172), (258, 79448), (344, 59586), (516, 39724), (688, 29793), (1032, 19862), (2064, 9931)]