18808888

素因数分解:

$2^3\times 7^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{107}}^1$

素因数の和:236

約数の個数: 64

約数和(自身を含む): 42197760

約数和(自身を除く): 23388872

約数列:

[1, 2, 4, 7, 8, 14, 28, 43, 56, 73, 86, 107, 146, 172, 214, 292, 301, 344, 428, 511, 584, 602, 749, 856, 1022, 1204, 1498, 2044, 2408, 2996, 3139, 4088, 4601, 5992, 6278, 7811, 9202, 12556, 15622, 18404, 21973, 25112, 31244, 32207, 36808, 43946, 54677, 62488, 64414, 87892, 109354, 128828, 175784, 218708, 257656, 335873, 437416, 671746, 1343492, 2351111, 2686984, 4702222, 9404444, 18808888]

約数ペア:

[(1, 18808888), (2, 9404444), (4, 4702222), (7, 2686984), (8, 2351111), (14, 1343492), (28, 671746), (43, 437416), (56, 335873), (73, 257656), (86, 218708), (107, 175784), (146, 128828), (172, 109354), (214, 87892), (292, 64414), (301, 62488), (344, 54677), (428, 43946), (511, 36808), (584, 32207), (602, 31244), (749, 25112), (856, 21973), (1022, 18404), (1204, 15622), (1498, 12556), (2044, 9202), (2408, 7811), (2996, 6278), (3139, 5992), (4088, 4601)]