21948668

素因数分解:

$2^2\times 7^2\times {\mathrm{113}}^1\times {\mathrm{991}}^1$

素因数の和:1122

約数の個数: 36

約数和(自身を含む): 45122112

約数和(自身を除く): 23173444

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 113, 196, 226, 452, 791, 991, 1582, 1982, 3164, 3964, 5537, 6937, 11074, 13874, 22148, 27748, 48559, 97118, 111983, 194236, 223966, 447932, 783881, 1567762, 3135524, 5487167, 10974334, 21948668]

約数ペア:

[(1, 21948668), (2, 10974334), (4, 5487167), (7, 3135524), (14, 1567762), (28, 783881), (49, 447932), (98, 223966), (113, 194236), (196, 111983), (226, 97118), (452, 48559), (791, 27748), (991, 22148), (1582, 13874), (1982, 11074), (3164, 6937), (3964, 5537)]