18642701

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{1229}}^1$

素因数の和:1444

約数の個数: 16

約数和(自身を含む): 23379840

約数和(自身を除く): 4737139

約数列:

[1, 7, 11, 77, 197, 1229, 1379, 2167, 8603, 13519, 15169, 94633, 242113, 1694791, 2663243, 18642701]

約数ペア:

[(1, 18642701), (7, 2663243), (11, 1694791), (77, 242113), (197, 94633), (1229, 15169), (1379, 13519), (2167, 8603)]