21066472

素因数分解:

$2^3\times 7^2\times {\mathrm{61}}^1\times {\mathrm{881}}^1$

素因数の和:962

約数の個数: 48

約数和(自身を含む): 46754820

約数和(自身を除く): 25688348

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 61, 98, 122, 196, 244, 392, 427, 488, 854, 881, 1708, 1762, 2989, 3416, 3524, 5978, 6167, 7048, 11956, 12334, 23912, 24668, 43169, 49336, 53741, 86338, 107482, 172676, 214964, 345352, 376187, 429928, 752374, 1504748, 2633309, 3009496, 5266618, 10533236, 21066472]

約数ペア:

[(1, 21066472), (2, 10533236), (4, 5266618), (7, 3009496), (8, 2633309), (14, 1504748), (28, 752374), (49, 429928), (56, 376187), (61, 345352), (98, 214964), (122, 172676), (196, 107482), (244, 86338), (392, 53741), (427, 49336), (488, 43169), (854, 24668), (881, 23912), (1708, 12334), (1762, 11956), (2989, 7048), (3416, 6167), (3524, 5978)]