638032759

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{227}}^1\times {\mathrm{461}}^1$

素因数の和:775

約数の個数: 32

約数和(自身を含む): 802238976

約数和(自身を除く): 164206217

約数列:

[1, 7, 13, 67, 91, 227, 461, 469, 871, 1589, 2951, 3227, 5993, 6097, 15209, 20657, 30887, 41951, 104647, 106463, 197717, 216209, 401531, 732529, 1360411, 1384019, 2810717, 7011349, 9522877, 49079443, 91147537, 638032759]

約数ペア:

[(1, 638032759), (7, 91147537), (13, 49079443), (67, 9522877), (91, 7011349), (227, 2810717), (461, 1384019), (469, 1360411), (871, 732529), (1589, 401531), (2951, 216209), (3227, 197717), (5993, 106463), (6097, 104647), (15209, 41951), (20657, 30887)]