20883212

素因数分解:

$2^2\times 7^3\times {\mathrm{31}}^1\times {\mathrm{491}}^1$

素因数の和:547

約数の個数: 48

約数和(自身を含む): 44083200

約数和(自身を除く): 23199988

約数列:

[1, 2, 4, 7, 14, 28, 31, 49, 62, 98, 124, 196, 217, 343, 434, 491, 686, 868, 982, 1372, 1519, 1964, 3038, 3437, 6076, 6874, 10633, 13748, 15221, 21266, 24059, 30442, 42532, 48118, 60884, 96236, 106547, 168413, 213094, 336826, 426188, 673652, 745829, 1491658, 2983316, 5220803, 10441606, 20883212]

約数ペア:

[(1, 20883212), (2, 10441606), (4, 5220803), (7, 2983316), (14, 1491658), (28, 745829), (31, 673652), (49, 426188), (62, 336826), (98, 213094), (124, 168413), (196, 106547), (217, 96236), (343, 60884), (434, 48118), (491, 42532), (686, 30442), (868, 24059), (982, 21266), (1372, 15221), (1519, 13748), (1964, 10633), (3038, 6874), (3437, 6076)]