221275152007

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^2\times {\mathrm{89}}^1\times {\mathrm{16253}}^1$

素因数の和:16444

約数の個数: 48

約数和(自身を含む): 282296871360

約数和(自身を除く): 61021719353

約数列:

[1, 7, 13, 41, 89, 91, 287, 533, 623, 1157, 1681, 3649, 3731, 8099, 11767, 16253, 21853, 25543, 47437, 113771, 149609, 152971, 211289, 332059, 666373, 1047263, 1446517, 1479023, 1944917, 4664611, 8662849, 10125619, 13614419, 18804721, 27321293, 59307197, 60639943, 131633047, 191249051, 355176809, 415150379, 770993561, 2431595077, 2486237663, 5396954927, 17021165539, 31610736001, 221275152007]

約数ペア:

[(1, 221275152007), (7, 31610736001), (13, 17021165539), (41, 5396954927), (89, 2486237663), (91, 2431595077), (287, 770993561), (533, 415150379), (623, 355176809), (1157, 191249051), (1681, 131633047), (3649, 60639943), (3731, 59307197), (8099, 27321293), (11767, 18804721), (16253, 13614419), (21853, 10125619), (25543, 8662849), (47437, 4664611), (113771, 1944917), (149609, 1479023), (152971, 1446517), (211289, 1047263), (332059, 666373)]