681917691

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{2497867}}^1$

素因数の和:2497890

約数の個数: 16

約数和(自身を含む): 1119044864

約数和(自身を除く): 437127173

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 2497867, 7493601, 17485069, 32472271, 52455207, 97416813, 227305897, 681917691]

約数ペア:

[(1, 681917691), (3, 227305897), (7, 97416813), (13, 52455207), (21, 32472271), (39, 17485069), (91, 7493601), (273, 2497867)]