19996922

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{269}}^1$

素因数の和:422

約数の個数: 32

約数和(自身を含む): 34214400

約数和(自身を除く): 14217478

約数列:

[1, 2, 11, 22, 31, 62, 109, 218, 269, 341, 538, 682, 1199, 2398, 2959, 3379, 5918, 6758, 8339, 16678, 29321, 37169, 58642, 74338, 91729, 183458, 322531, 645062, 908951, 1817902, 9998461, 19996922]

約数ペア:

[(1, 19996922), (2, 9998461), (11, 1817902), (22, 908951), (31, 645062), (62, 322531), (109, 183458), (218, 91729), (269, 74338), (341, 58642), (538, 37169), (682, 29321), (1199, 16678), (2398, 8339), (2959, 6758), (3379, 5918)]