18278928

素因数分解:

$2^4\times 3^2\times {\mathrm{23}}^1\times {\mathrm{5519}}^1$

素因数の和:5556

約数の個数: 60

約数和(自身を含む): 53389440

約数和(自身を除く): 35110512

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 23, 24, 36, 46, 48, 69, 72, 92, 138, 144, 184, 207, 276, 368, 414, 552, 828, 1104, 1656, 3312, 5519, 11038, 16557, 22076, 33114, 44152, 49671, 66228, 88304, 99342, 126937, 132456, 198684, 253874, 264912, 380811, 397368, 507748, 761622, 794736, 1015496, 1142433, 1523244, 2030992, 2284866, 3046488, 4569732, 6092976, 9139464, 18278928]

約数ペア:

[(1, 18278928), (2, 9139464), (3, 6092976), (4, 4569732), (6, 3046488), (8, 2284866), (9, 2030992), (12, 1523244), (16, 1142433), (18, 1015496), (23, 794736), (24, 761622), (36, 507748), (46, 397368), (48, 380811), (69, 264912), (72, 253874), (92, 198684), (138, 132456), (144, 126937), (184, 99342), (207, 88304), (276, 66228), (368, 49671), (414, 44152), (552, 33114), (828, 22076), (1104, 16557), (1656, 11038), (3312, 5519)]