1997698791

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{197}}^1\times {\mathrm{2243}}^1$

素因数の和:2591

約数の個数: 32

約数和(自身を含む): 2943122688

約数和(自身を除く): 945423897

約数列:

[1, 3, 11, 33, 137, 197, 411, 591, 1507, 2167, 2243, 4521, 6501, 6729, 24673, 26989, 74019, 80967, 296879, 307291, 441871, 890637, 921873, 1325613, 3380201, 4860581, 10140603, 14581743, 60536327, 181608981, 665899597, 1997698791]

約数ペア:

[(1, 1997698791), (3, 665899597), (11, 181608981), (33, 60536327), (137, 14581743), (197, 10140603), (411, 4860581), (591, 3380201), (1507, 1325613), (2167, 921873), (2243, 890637), (4521, 441871), (6501, 307291), (6729, 296879), (24673, 80967), (26989, 74019)]