17904745

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{97}}^1$

素因数の和:217

約数の個数: 32

約数和(自身を含む): 23990400

約数和(自身を除く): 6085655

約数列:

[1, 5, 19, 29, 67, 95, 97, 145, 335, 485, 551, 1273, 1843, 1943, 2755, 2813, 6365, 6499, 9215, 9715, 14065, 32495, 36917, 53447, 123481, 184585, 188471, 267235, 617405, 942355, 3580949, 17904745]

約数ペア:

[(1, 17904745), (5, 3580949), (19, 942355), (29, 617405), (67, 267235), (95, 188471), (97, 184585), (145, 123481), (335, 53447), (485, 36917), (551, 32495), (1273, 14065), (1843, 9715), (1943, 9215), (2755, 6499), (2813, 6365)]