18381776

素因数分解:

$2^4\times 7^1\times {\mathrm{41}}^1\times {\mathrm{4003}}^1$

素因数の和:4059

約数の個数: 40

約数和(自身を含む): 41705664

約数和(自身を除く): 23323888

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 41, 56, 82, 112, 164, 287, 328, 574, 656, 1148, 2296, 4003, 4592, 8006, 16012, 28021, 32024, 56042, 64048, 112084, 164123, 224168, 328246, 448336, 656492, 1148861, 1312984, 2297722, 2625968, 4595444, 9190888, 18381776]

約数ペア:

[(1, 18381776), (2, 9190888), (4, 4595444), (7, 2625968), (8, 2297722), (14, 1312984), (16, 1148861), (28, 656492), (41, 448336), (56, 328246), (82, 224168), (112, 164123), (164, 112084), (287, 64048), (328, 56042), (574, 32024), (656, 28021), (1148, 16012), (2296, 8006), (4003, 4592)]