18381968

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{239}}^1$

素因数の和:300

約数の個数: 80

約数和(自身を含む): 42854400

約数和(自身を除く): 24472432

約数列:

[1, 2, 4, 8, 11, 16, 19, 22, 23, 38, 44, 46, 76, 88, 92, 152, 176, 184, 209, 239, 253, 304, 368, 418, 437, 478, 506, 836, 874, 956, 1012, 1672, 1748, 1912, 2024, 2629, 3344, 3496, 3824, 4048, 4541, 4807, 5258, 5497, 6992, 9082, 9614, 10516, 10994, 18164, 19228, 21032, 21988, 36328, 38456, 42064, 43976, 49951, 60467, 72656, 76912, 87952, 99902, 104443, 120934, 199804, 208886, 241868, 399608, 417772, 483736, 799216, 835544, 967472, 1148873, 1671088, 2297746, 4595492, 9190984, 18381968]

約数ペア:

[(1, 18381968), (2, 9190984), (4, 4595492), (8, 2297746), (11, 1671088), (16, 1148873), (19, 967472), (22, 835544), (23, 799216), (38, 483736), (44, 417772), (46, 399608), (76, 241868), (88, 208886), (92, 199804), (152, 120934), (176, 104443), (184, 99902), (209, 87952), (239, 76912), (253, 72656), (304, 60467), (368, 49951), (418, 43976), (437, 42064), (478, 38456), (506, 36328), (836, 21988), (874, 21032), (956, 19228), (1012, 18164), (1672, 10994), (1748, 10516), (1912, 9614), (2024, 9082), (2629, 6992), (3344, 5497), (3496, 5258), (3824, 4807), (4048, 4541)]