20815494

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{101}}^1\times {\mathrm{701}}^1$

素因数の和:821

約数の個数: 48

約数和(自身を含む): 48977136

約数和(自身を除く): 28161642

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 49, 98, 101, 147, 202, 294, 303, 606, 701, 707, 1402, 1414, 2103, 2121, 4206, 4242, 4907, 4949, 9814, 9898, 14721, 14847, 29442, 29694, 34349, 68698, 70801, 103047, 141602, 206094, 212403, 424806, 495607, 991214, 1486821, 2973642, 3469249, 6938498, 10407747, 20815494]

約数ペア:

[(1, 20815494), (2, 10407747), (3, 6938498), (6, 3469249), (7, 2973642), (14, 1486821), (21, 991214), (42, 495607), (49, 424806), (98, 212403), (101, 206094), (147, 141602), (202, 103047), (294, 70801), (303, 68698), (606, 34349), (701, 29694), (707, 29442), (1402, 14847), (1414, 14721), (2103, 9898), (2121, 9814), (4206, 4949), (4242, 4907)]