20876814

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{223}}^1\times {\mathrm{743}}^1$

素因数の和:981

約数の個数: 48

約数和(自身を含む): 51996672

約数和(自身を除く): 31119858

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 223, 446, 669, 743, 1338, 1486, 1561, 2007, 2229, 3122, 4014, 4458, 4683, 5201, 6687, 9366, 10402, 13374, 14049, 15603, 28098, 31206, 46809, 93618, 165689, 331378, 497067, 994134, 1159823, 1491201, 2319646, 2982402, 3479469, 6958938, 10438407, 20876814]

約数ペア:

[(1, 20876814), (2, 10438407), (3, 6958938), (6, 3479469), (7, 2982402), (9, 2319646), (14, 1491201), (18, 1159823), (21, 994134), (42, 497067), (63, 331378), (126, 165689), (223, 93618), (446, 46809), (669, 31206), (743, 28098), (1338, 15603), (1486, 14049), (1561, 13374), (2007, 10402), (2229, 9366), (3122, 6687), (4014, 5201), (4458, 4683)]