21899412

素因数分解:

$2^2\times 3^2\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{401}}^1$

素因数の和:489

約数の個数: 72

約数和(自身を含む): 58384872

約数和(自身を除く): 36485460

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 37, 41, 74, 82, 111, 123, 148, 164, 222, 246, 333, 369, 401, 444, 492, 666, 738, 802, 1203, 1332, 1476, 1517, 1604, 2406, 3034, 3609, 4551, 4812, 6068, 7218, 9102, 13653, 14436, 14837, 16441, 18204, 27306, 29674, 32882, 44511, 49323, 54612, 59348, 65764, 89022, 98646, 133533, 147969, 178044, 197292, 267066, 295938, 534132, 591876, 608317, 1216634, 1824951, 2433268, 3649902, 5474853, 7299804, 10949706, 21899412]

約数ペア:

[(1, 21899412), (2, 10949706), (3, 7299804), (4, 5474853), (6, 3649902), (9, 2433268), (12, 1824951), (18, 1216634), (36, 608317), (37, 591876), (41, 534132), (74, 295938), (82, 267066), (111, 197292), (123, 178044), (148, 147969), (164, 133533), (222, 98646), (246, 89022), (333, 65764), (369, 59348), (401, 54612), (444, 49323), (492, 44511), (666, 32882), (738, 29674), (802, 27306), (1203, 18204), (1332, 16441), (1476, 14837), (1517, 14436), (1604, 13653), (2406, 9102), (3034, 7218), (3609, 6068), (4551, 4812)]