18746398

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{61}}^2\times {\mathrm{229}}^1$

素因数の和:364

約数の個数: 24

約数和(自身を含む): 31323240

約数和(自身を除く): 12576842

約数列:

[1, 2, 11, 22, 61, 122, 229, 458, 671, 1342, 2519, 3721, 5038, 7442, 13969, 27938, 40931, 81862, 153659, 307318, 852109, 1704218, 9373199, 18746398]

約数ペア:

[(1, 18746398), (2, 9373199), (11, 1704218), (22, 852109), (61, 307318), (122, 153659), (229, 81862), (458, 40931), (671, 27938), (1342, 13969), (2519, 7442), (3721, 5038)]