20741526

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{647}}^1$

素因数の和:805

約数の個数: 48

約数和(自身を含む): 48825504

約数和(自身を除く): 28083978

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 117, 137, 234, 274, 411, 647, 822, 1233, 1294, 1781, 1941, 2466, 3562, 3882, 5343, 5823, 8411, 10686, 11646, 16029, 16822, 25233, 32058, 50466, 75699, 88639, 151398, 177278, 265917, 531834, 797751, 1152307, 1595502, 2304614, 3456921, 6913842, 10370763, 20741526]

約数ペア:

[(1, 20741526), (2, 10370763), (3, 6913842), (6, 3456921), (9, 2304614), (13, 1595502), (18, 1152307), (26, 797751), (39, 531834), (78, 265917), (117, 177278), (137, 151398), (234, 88639), (274, 75699), (411, 50466), (647, 32058), (822, 25233), (1233, 16822), (1294, 16029), (1781, 11646), (1941, 10686), (2466, 8411), (3562, 5823), (3882, 5343)]