19960778883

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{937}}^1\times {\mathrm{1459}}^1$

素因数の和:2587

約数の個数: 32

約数和(自身を含む): 27696363520

約数和(自身を除く): 7735584637

約数列:

[1, 3, 31, 93, 157, 471, 937, 1459, 2811, 4377, 4867, 14601, 29047, 45229, 87141, 135687, 147109, 229063, 441327, 687189, 1367083, 4101249, 4560379, 7100953, 13681137, 21302859, 42379573, 127138719, 214632031, 643896093, 6653592961, 19960778883]

約数ペア:

[(1, 19960778883), (3, 6653592961), (31, 643896093), (93, 214632031), (157, 127138719), (471, 42379573), (937, 21302859), (1459, 13681137), (2811, 7100953), (4377, 4560379), (4867, 4101249), (14601, 1367083), (29047, 687189), (45229, 441327), (87141, 229063), (135687, 147109)]