21000974428

素因数分解:

$2^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{834299}}^1$

素因数の和:834370

約数の個数: 48

約数和(自身を含む): 44851968000

約数和(自身を除く): 23850993572

約数列:

[1, 2, 4, 7, 14, 28, 29, 31, 58, 62, 116, 124, 203, 217, 406, 434, 812, 868, 899, 1798, 3596, 6293, 12586, 25172, 834299, 1668598, 3337196, 5840093, 11680186, 23360372, 24194671, 25863269, 48389342, 51726538, 96778684, 103453076, 169362697, 181042883, 338725394, 362085766, 677450788, 724171532, 750034801, 1500069602, 3000139204, 5250243607, 10500487214, 21000974428]

約数ペア:

[(1, 21000974428), (2, 10500487214), (4, 5250243607), (7, 3000139204), (14, 1500069602), (28, 750034801), (29, 724171532), (31, 677450788), (58, 362085766), (62, 338725394), (116, 181042883), (124, 169362697), (203, 103453076), (217, 96778684), (406, 51726538), (434, 48389342), (812, 25863269), (868, 24194671), (899, 23360372), (1798, 11680186), (3596, 5840093), (6293, 3337196), (12586, 1668598), (25172, 834299)]