20688314101

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{641}}^1\times {\mathrm{673}}^1$

素因数の和:1382

約数の個数: 64

約数和(自身を含む): 27914858496

約数和(自身を除く): 7226544395

約数列:

[1, 7, 13, 17, 31, 91, 119, 217, 221, 403, 527, 641, 673, 1547, 2821, 3689, 4487, 4711, 6851, 8333, 8749, 10897, 11441, 19871, 20863, 47957, 58331, 61243, 76279, 80087, 139097, 141661, 146041, 148733, 258323, 271219, 337807, 354671, 431393, 991627, 1041131, 1808261, 1898533, 2364649, 2482697, 3019751, 4391491, 4610723, 5608109, 7333681, 13373183, 30740437, 32275061, 39256763, 51335767, 93612281, 95337853, 173851379, 227344111, 667364971, 1216959653, 1591408777, 2955473443, 20688314101]

約数ペア:

[(1, 20688314101), (7, 2955473443), (13, 1591408777), (17, 1216959653), (31, 667364971), (91, 227344111), (119, 173851379), (217, 95337853), (221, 93612281), (403, 51335767), (527, 39256763), (641, 32275061), (673, 30740437), (1547, 13373183), (2821, 7333681), (3689, 5608109), (4487, 4610723), (4711, 4391491), (6851, 3019751), (8333, 2482697), (8749, 2364649), (10897, 1898533), (11441, 1808261), (19871, 1041131), (20863, 991627), (47957, 431393), (58331, 354671), (61243, 337807), (76279, 271219), (80087, 258323), (139097, 148733), (141661, 146041)]