18661986

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{4003}}^1$

素因数の和:4055

約数の個数: 48

約数和(自身を含む): 47471424

約数和(自身を除く): 28809438

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 37, 42, 63, 74, 111, 126, 222, 259, 333, 518, 666, 777, 1554, 2331, 4003, 4662, 8006, 12009, 24018, 28021, 36027, 56042, 72054, 84063, 148111, 168126, 252189, 296222, 444333, 504378, 888666, 1036777, 1332999, 2073554, 2665998, 3110331, 6220662, 9330993, 18661986]

約数ペア:

[(1, 18661986), (2, 9330993), (3, 6220662), (6, 3110331), (7, 2665998), (9, 2073554), (14, 1332999), (18, 1036777), (21, 888666), (37, 504378), (42, 444333), (63, 296222), (74, 252189), (111, 168126), (126, 148111), (222, 84063), (259, 72054), (333, 56042), (518, 36027), (666, 28021), (777, 24018), (1554, 12009), (2331, 8006), (4003, 4662)]