16860921

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{1553}}^1$

素因数の和:1621

約数の個数: 32

約数和(自身を含む): 28643328

約数和(自身を除く): 11782407

約数列:

[1, 3, 7, 11, 21, 33, 47, 77, 141, 231, 329, 517, 987, 1551, 1553, 3619, 4659, 10857, 10871, 17083, 32613, 51249, 72991, 119581, 218973, 358743, 510937, 802901, 1532811, 2408703, 5620307, 16860921]

約数ペア:

[(1, 16860921), (3, 5620307), (7, 2408703), (11, 1532811), (21, 802901), (33, 510937), (47, 358743), (77, 218973), (141, 119581), (231, 72991), (329, 51249), (517, 32613), (987, 17083), (1551, 10871), (1553, 10857), (3619, 4659)]