20187984

素因数分解:

$2^4\times 3^1\times {\mathrm{43}}^1\times {\mathrm{9781}}^1$

素因数の和:9835

約数の個数: 40

約数和(自身を含む): 53370592

約数和(自身を除く): 33182608

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 43, 48, 86, 129, 172, 258, 344, 516, 688, 1032, 2064, 9781, 19562, 29343, 39124, 58686, 78248, 117372, 156496, 234744, 420583, 469488, 841166, 1261749, 1682332, 2523498, 3364664, 5046996, 6729328, 10093992, 20187984]

約数ペア:

[(1, 20187984), (2, 10093992), (3, 6729328), (4, 5046996), (6, 3364664), (8, 2523498), (12, 1682332), (16, 1261749), (24, 841166), (43, 469488), (48, 420583), (86, 234744), (129, 156496), (172, 117372), (258, 78248), (344, 58686), (516, 39124), (688, 29343), (1032, 19562), (2064, 9781)]