681567887

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{16607}}^1$

素因数の和:16679

約数の個数: 32

約数和(自身を含む): 937488384

約数和(自身を除く): 255920497

約数列:

[1, 7, 11, 13, 41, 77, 91, 143, 287, 451, 533, 1001, 3157, 3731, 5863, 16607, 41041, 116249, 182677, 215891, 680887, 1278739, 1511237, 2374801, 4766209, 7489757, 8851531, 16623607, 52428299, 61960717, 97366841, 681567887]

約数ペア:

[(1, 681567887), (7, 97366841), (11, 61960717), (13, 52428299), (41, 16623607), (77, 8851531), (91, 7489757), (143, 4766209), (287, 2374801), (451, 1511237), (533, 1278739), (1001, 680887), (3157, 215891), (3731, 182677), (5863, 116249), (16607, 41041)]