20161818

素因数分解:

$2^1\times 3^3\times {\mathrm{37}}^1\times {\mathrm{10091}}^1$

素因数の和:10139

約数の個数: 32

約数和(自身を含む): 46019520

約数和(自身を除く): 25857702

約数列:

[1, 2, 3, 6, 9, 18, 27, 37, 54, 74, 111, 222, 333, 666, 999, 1998, 10091, 20182, 30273, 60546, 90819, 181638, 272457, 373367, 544914, 746734, 1120101, 2240202, 3360303, 6720606, 10080909, 20161818]

約数ペア:

[(1, 20161818), (2, 10080909), (3, 6720606), (6, 3360303), (9, 2240202), (18, 1120101), (27, 746734), (37, 544914), (54, 373367), (74, 272457), (111, 181638), (222, 90819), (333, 60546), (666, 30273), (999, 20182), (1998, 10091)]