18557768

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{739}}^1$

素因数の和:861

約数の個数: 32

約数和(自身を含む): 36141600

約数和(自身を除く): 17583832

約数列:

[1, 2, 4, 8, 43, 73, 86, 146, 172, 292, 344, 584, 739, 1478, 2956, 3139, 5912, 6278, 12556, 25112, 31777, 53947, 63554, 107894, 127108, 215788, 254216, 431576, 2319721, 4639442, 9278884, 18557768]

約数ペア:

[(1, 18557768), (2, 9278884), (4, 4639442), (8, 2319721), (43, 431576), (73, 254216), (86, 215788), (146, 127108), (172, 107894), (292, 63554), (344, 53947), (584, 31777), (739, 25112), (1478, 12556), (2956, 6278), (3139, 5912)]