9921681

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{139}}^1$

素因数の和:266

約数の個数: 48

約数和(自身を含む): 18170880

約数和(自身を除く): 8249199

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 103, 139, 231, 309, 417, 693, 721, 927, 973, 1133, 1251, 1529, 2163, 2919, 3399, 4587, 6489, 7931, 8757, 10197, 10703, 13761, 14317, 23793, 32109, 42951, 71379, 96327, 100219, 128853, 157487, 300657, 472461, 901971, 1102409, 1417383, 3307227, 9921681]

約数ペア:

[(1, 9921681), (3, 3307227), (7, 1417383), (9, 1102409), (11, 901971), (21, 472461), (33, 300657), (63, 157487), (77, 128853), (99, 100219), (103, 96327), (139, 71379), (231, 42951), (309, 32109), (417, 23793), (693, 14317), (721, 13761), (927, 10703), (973, 10197), (1133, 8757), (1251, 7931), (1529, 6489), (2163, 4587), (2919, 3399)]