18420424

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{479}}^1$

素因数の和:538

約数の個数: 64

約数和(自身を含む): 41472000

約数和(自身を除く): 23051576

約数列:

[1, 2, 4, 8, 11, 19, 22, 23, 38, 44, 46, 76, 88, 92, 152, 184, 209, 253, 418, 437, 479, 506, 836, 874, 958, 1012, 1672, 1748, 1916, 2024, 3496, 3832, 4807, 5269, 9101, 9614, 10538, 11017, 18202, 19228, 21076, 22034, 36404, 38456, 42152, 44068, 72808, 88136, 100111, 121187, 200222, 209323, 242374, 400444, 418646, 484748, 800888, 837292, 969496, 1674584, 2302553, 4605106, 9210212, 18420424]

約数ペア:

[(1, 18420424), (2, 9210212), (4, 4605106), (8, 2302553), (11, 1674584), (19, 969496), (22, 837292), (23, 800888), (38, 484748), (44, 418646), (46, 400444), (76, 242374), (88, 209323), (92, 200222), (152, 121187), (184, 100111), (209, 88136), (253, 72808), (418, 44068), (437, 42152), (479, 38456), (506, 36404), (836, 22034), (874, 21076), (958, 19228), (1012, 18202), (1672, 11017), (1748, 10538), (1916, 9614), (2024, 9101), (3496, 5269), (3832, 4807)]