158647671

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{1997}}^1$

素因数の和:2120

約数の個数: 48

約数和(自身を含む): 285090624

約数和(自身を除く): 126442953

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 97, 117, 273, 291, 679, 819, 873, 1261, 1997, 2037, 3783, 5991, 6111, 8827, 11349, 13979, 17973, 25961, 26481, 41937, 77883, 79443, 125811, 181727, 193709, 233649, 545181, 581127, 1355963, 1635543, 1743381, 2518217, 4067889, 7554651, 12203667, 17627519, 22663953, 52882557, 158647671]

約数ペア:

[(1, 158647671), (3, 52882557), (7, 22663953), (9, 17627519), (13, 12203667), (21, 7554651), (39, 4067889), (63, 2518217), (91, 1743381), (97, 1635543), (117, 1355963), (273, 581127), (291, 545181), (679, 233649), (819, 193709), (873, 181727), (1261, 125811), (1997, 79443), (2037, 77883), (3783, 41937), (5991, 26481), (6111, 25961), (8827, 17973), (11349, 13979)]