18740235

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{643}}^1$

素因数の和:747

約数の個数: 32

約数和(自身を含む): 31530240

約数和(自身を除く): 12790005

約数列:

[1, 3, 5, 15, 29, 67, 87, 145, 201, 335, 435, 643, 1005, 1929, 1943, 3215, 5829, 9645, 9715, 18647, 29145, 43081, 55941, 93235, 129243, 215405, 279705, 646215, 1249349, 3748047, 6246745, 18740235]

約数ペア:

[(1, 18740235), (3, 6246745), (5, 3748047), (15, 1249349), (29, 646215), (67, 279705), (87, 215405), (145, 129243), (201, 93235), (335, 55941), (435, 43081), (643, 29145), (1005, 18647), (1929, 9715), (1943, 9645), (3215, 5829)]