201397721

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{18719}}^1$

素因数の和:18808

約数の個数: 16

約数和(自身を含む): 242611200

約数和(自身を除く): 41213479

約数列:

[1, 7, 29, 53, 203, 371, 1537, 10759, 18719, 131033, 542851, 992107, 3799957, 6944749, 28771103, 201397721]

約数ペア:

[(1, 201397721), (7, 28771103), (29, 6944749), (53, 3799957), (203, 992107), (371, 542851), (1537, 131033), (10759, 18719)]