20196764

素因数分解:

$2^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{241}}^1$

素因数の和:366

約数の個数: 48

約数和(自身を含む): 42119616

約数和(自身を除く): 21922852

約数列:

[1, 2, 4, 7, 14, 28, 41, 73, 82, 146, 164, 241, 287, 292, 482, 511, 574, 964, 1022, 1148, 1687, 2044, 2993, 3374, 5986, 6748, 9881, 11972, 17593, 19762, 20951, 35186, 39524, 41902, 69167, 70372, 83804, 123151, 138334, 246302, 276668, 492604, 721313, 1442626, 2885252, 5049191, 10098382, 20196764]

約数ペア:

[(1, 20196764), (2, 10098382), (4, 5049191), (7, 2885252), (14, 1442626), (28, 721313), (41, 492604), (73, 276668), (82, 246302), (146, 138334), (164, 123151), (241, 83804), (287, 70372), (292, 69167), (482, 41902), (511, 39524), (574, 35186), (964, 20951), (1022, 19762), (1148, 17593), (1687, 11972), (2044, 9881), (2993, 6748), (3374, 5986)]