19949585

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{113}}^1$

素因数の和:233

約数の個数: 32

約数和(自身を含む): 26790912

約数和(自身を除く): 6841327

約数列:

[1, 5, 17, 31, 67, 85, 113, 155, 335, 527, 565, 1139, 1921, 2077, 2635, 3503, 5695, 7571, 9605, 10385, 17515, 35309, 37855, 59551, 128707, 176545, 234701, 297755, 643535, 1173505, 3989917, 19949585]

約数ペア:

[(1, 19949585), (5, 3989917), (17, 1173505), (31, 643535), (67, 297755), (85, 234701), (113, 176545), (155, 128707), (335, 59551), (527, 37855), (565, 35309), (1139, 17515), (1921, 10385), (2077, 9605), (2635, 7571), (3503, 5695)]