20894692

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{419}}^1$

素因数の和:580

約数の個数: 48

約数和(自身を含む): 45440640

約数和(自身を除く): 24545948

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 137, 182, 274, 364, 419, 548, 838, 959, 1676, 1781, 1918, 2933, 3562, 3836, 5447, 5866, 7124, 10894, 11732, 12467, 21788, 24934, 38129, 49868, 57403, 76258, 114806, 152516, 229612, 401821, 746239, 803642, 1492478, 1607284, 2984956, 5223673, 10447346, 20894692]

約数ペア:

[(1, 20894692), (2, 10447346), (4, 5223673), (7, 2984956), (13, 1607284), (14, 1492478), (26, 803642), (28, 746239), (52, 401821), (91, 229612), (137, 152516), (182, 114806), (274, 76258), (364, 57403), (419, 49868), (548, 38129), (838, 24934), (959, 21788), (1676, 12467), (1781, 11732), (1918, 10894), (2933, 7124), (3562, 5866), (3836, 5447)]