2487804921

素因数分解:

$3^4\times 7^2\times {\mathrm{626809}}^1$

素因数の和:626835

約数の個数: 30

約数和(自身を含む): 4323108570

約数和(自身を除く): 1835303649

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 441, 567, 1323, 3969, 626809, 1880427, 4387663, 5641281, 13162989, 16923843, 30713641, 39488967, 50771529, 92140923, 118466901, 276422769, 355400703, 829268307, 2487804921]

約数ペア:

[(1, 2487804921), (3, 829268307), (7, 355400703), (9, 276422769), (21, 118466901), (27, 92140923), (49, 50771529), (63, 39488967), (81, 30713641), (147, 16923843), (189, 13162989), (441, 5641281), (567, 4387663), (1323, 1880427), (3969, 626809)]