21228244

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{61}}^1\times {\mathrm{241}}^1$

素因数の和:344

約数の個数: 36

約数和(自身を含む): 40015668

約数和(自身を除く): 18787424

約数列:

[1, 2, 4, 19, 38, 61, 76, 122, 241, 244, 361, 482, 722, 964, 1159, 1444, 2318, 4579, 4636, 9158, 14701, 18316, 22021, 29402, 44042, 58804, 87001, 88084, 174002, 279319, 348004, 558638, 1117276, 5307061, 10614122, 21228244]

約数ペア:

[(1, 21228244), (2, 10614122), (4, 5307061), (19, 1117276), (38, 558638), (61, 348004), (76, 279319), (122, 174002), (241, 88084), (244, 87001), (361, 58804), (482, 44042), (722, 29402), (964, 22021), (1159, 18316), (1444, 14701), (2318, 9158), (4579, 4636)]