21860118

素因数分解:

$2^1\times 3^4\times 7^1\times {\mathrm{37}}^1\times {\mathrm{521}}^1$

素因数の和:579

約数の個数: 80

約数和(自身を含む): 57603744

約数和(自身を除く): 35743626

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 37, 42, 54, 63, 74, 81, 111, 126, 162, 189, 222, 259, 333, 378, 518, 521, 567, 666, 777, 999, 1042, 1134, 1554, 1563, 1998, 2331, 2997, 3126, 3647, 4662, 4689, 5994, 6993, 7294, 9378, 10941, 13986, 14067, 19277, 20979, 21882, 28134, 32823, 38554, 41958, 42201, 57831, 65646, 84402, 98469, 115662, 134939, 173493, 196938, 269878, 295407, 346986, 404817, 520479, 590814, 809634, 1040958, 1214451, 1561437, 2428902, 3122874, 3643353, 7286706, 10930059, 21860118]

約数ペア:

[(1, 21860118), (2, 10930059), (3, 7286706), (6, 3643353), (7, 3122874), (9, 2428902), (14, 1561437), (18, 1214451), (21, 1040958), (27, 809634), (37, 590814), (42, 520479), (54, 404817), (63, 346986), (74, 295407), (81, 269878), (111, 196938), (126, 173493), (162, 134939), (189, 115662), (222, 98469), (259, 84402), (333, 65646), (378, 57831), (518, 42201), (521, 41958), (567, 38554), (666, 32823), (777, 28134), (999, 21882), (1042, 20979), (1134, 19277), (1554, 14067), (1563, 13986), (1998, 10941), (2331, 9378), (2997, 7294), (3126, 6993), (3647, 5994), (4662, 4689)]