19498655

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{397}}^1$

素因数の和:479

約数の個数: 32

約数和(自身を含む): 27509760

約数和(自身を除く): 8011105

約数列:

[1, 5, 11, 19, 47, 55, 95, 209, 235, 397, 517, 893, 1045, 1985, 2585, 4367, 4465, 7543, 9823, 18659, 21835, 37715, 49115, 82973, 93295, 205249, 354521, 414865, 1026245, 1772605, 3899731, 19498655]

約数ペア:

[(1, 19498655), (5, 3899731), (11, 1772605), (19, 1026245), (47, 414865), (55, 354521), (95, 205249), (209, 93295), (235, 82973), (397, 49115), (517, 37715), (893, 21835), (1045, 18659), (1985, 9823), (2585, 7543), (4367, 4465)]