21144796

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{4561}}^1$

素因数の和:4645

約数の個数: 24

約数和(自身を含む): 39598160

約数和(自身を除く): 18453364

約数列:

[1, 2, 4, 19, 38, 61, 76, 122, 244, 1159, 2318, 4561, 4636, 9122, 18244, 86659, 173318, 278221, 346636, 556442, 1112884, 5286199, 10572398, 21144796]

約数ペア:

[(1, 21144796), (2, 10572398), (4, 5286199), (19, 1112884), (38, 556442), (61, 346636), (76, 278221), (122, 173318), (244, 86659), (1159, 18244), (2318, 9122), (4561, 4636)]