17920078

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{997}}^1$

素因数の和:1072

約数の個数: 32

約数和(自身を含む): 31616640

約数和(自身を除く): 13696562

約数列:

[1, 2, 11, 19, 22, 38, 43, 86, 209, 418, 473, 817, 946, 997, 1634, 1994, 8987, 10967, 17974, 18943, 21934, 37886, 42871, 85742, 208373, 416746, 471581, 814549, 943162, 1629098, 8960039, 17920078]

約数ペア:

[(1, 17920078), (2, 8960039), (11, 1629098), (19, 943162), (22, 814549), (38, 471581), (43, 416746), (86, 208373), (209, 85742), (418, 42871), (473, 37886), (817, 21934), (946, 18943), (997, 17974), (1634, 10967), (1994, 8987)]