21892878

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{239}}^1\times {\mathrm{727}}^1$

素因数の和:981

約数の個数: 48

約数和(自身を含む): 54512640

約数和(自身を除く): 32619762

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 239, 478, 717, 727, 1434, 1454, 1673, 2151, 2181, 3346, 4302, 4362, 5019, 5089, 6543, 10038, 10178, 13086, 15057, 15267, 30114, 30534, 45801, 91602, 173753, 347506, 521259, 1042518, 1216271, 1563777, 2432542, 3127554, 3648813, 7297626, 10946439, 21892878]

約数ペア:

[(1, 21892878), (2, 10946439), (3, 7297626), (6, 3648813), (7, 3127554), (9, 2432542), (14, 1563777), (18, 1216271), (21, 1042518), (42, 521259), (63, 347506), (126, 173753), (239, 91602), (478, 45801), (717, 30534), (727, 30114), (1434, 15267), (1454, 15057), (1673, 13086), (2151, 10178), (2181, 10038), (3346, 6543), (4302, 5089), (4362, 5019)]