21172019902

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{18917}}^1\times {\mathrm{50873}}^1$

素因数の和:69803

約数の個数: 16

約数和(自身を含む): 34647635952

約数和(自身を除く): 13475616050

約数列:

[1, 2, 11, 22, 18917, 37834, 50873, 101746, 208087, 416174, 559603, 1119206, 962364541, 1924729082, 10586009951, 21172019902]

約数ペア:

[(1, 21172019902), (2, 10586009951), (11, 1924729082), (22, 962364541), (18917, 1119206), (37834, 559603), (50873, 416174), (101746, 208087)]