17939558

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{241}}^1\times {\mathrm{409}}^1$

素因数の和:672

約数の個数: 32

約数和(自身を含む): 33337920

約数和(自身を除く): 15398362

約数列:

[1, 2, 7, 13, 14, 26, 91, 182, 241, 409, 482, 818, 1687, 2863, 3133, 3374, 5317, 5726, 6266, 10634, 21931, 37219, 43862, 74438, 98569, 197138, 689983, 1281397, 1379966, 2562794, 8969779, 17939558]

約数ペア:

[(1, 17939558), (2, 8969779), (7, 2562794), (13, 1379966), (14, 1281397), (26, 689983), (91, 197138), (182, 98569), (241, 74438), (409, 43862), (482, 37219), (818, 21931), (1687, 10634), (2863, 6266), (3133, 5726), (3374, 5317)]