21557932

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{241}}^1$

素因数の和:382

約数の個数: 48

約数和(自身を含む): 43908480

約数和(自身を除く): 22350548

約数列:

[1, 2, 4, 11, 19, 22, 38, 44, 76, 107, 209, 214, 241, 418, 428, 482, 836, 964, 1177, 2033, 2354, 2651, 4066, 4579, 4708, 5302, 8132, 9158, 10604, 18316, 22363, 25787, 44726, 50369, 51574, 89452, 100738, 103148, 201476, 283657, 489953, 567314, 979906, 1134628, 1959812, 5389483, 10778966, 21557932]

約数ペア:

[(1, 21557932), (2, 10778966), (4, 5389483), (11, 1959812), (19, 1134628), (22, 979906), (38, 567314), (44, 489953), (76, 283657), (107, 201476), (209, 103148), (214, 100738), (241, 89452), (418, 51574), (428, 50369), (482, 44726), (836, 25787), (964, 22363), (1177, 18316), (2033, 10604), (2354, 9158), (2651, 8132), (4066, 5302), (4579, 4708)]