28071018

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^1\times {\mathrm{211}}^1\times {\mathrm{389}}^1$

素因数の和:627

約数の個数: 48

約数和(自身を含む): 64490400

約数和(自身を除く): 36419382

約数列:

[1, 2, 3, 6, 9, 18, 19, 38, 57, 114, 171, 211, 342, 389, 422, 633, 778, 1167, 1266, 1899, 2334, 3501, 3798, 4009, 7002, 7391, 8018, 12027, 14782, 22173, 24054, 36081, 44346, 66519, 72162, 82079, 133038, 164158, 246237, 492474, 738711, 1477422, 1559501, 3119002, 4678503, 9357006, 14035509, 28071018]

約数ペア:

[(1, 28071018), (2, 14035509), (3, 9357006), (6, 4678503), (9, 3119002), (18, 1559501), (19, 1477422), (38, 738711), (57, 492474), (114, 246237), (171, 164158), (211, 133038), (342, 82079), (389, 72162), (422, 66519), (633, 44346), (778, 36081), (1167, 24054), (1266, 22173), (1899, 14782), (2334, 12027), (3501, 8018), (3798, 7391), (4009, 7002)]