21016938117

素因数分解:

$3^1\times 7^1\times {\mathrm{283}}^1\times {\mathrm{401}}^1\times {\mathrm{8819}}^1$

素因数の和:9513

約数の個数: 32

約数和(自身を含む): 32222776320

約数和(自身を除く): 11205838203

約数列:

[1, 3, 7, 21, 283, 401, 849, 1203, 1981, 2807, 5943, 8421, 8819, 26457, 61733, 113483, 185199, 340449, 794381, 2383143, 2495777, 3536419, 7487331, 10609257, 17470439, 24754933, 52411317, 74264799, 1000806577, 3002419731, 7005646039, 21016938117]

約数ペア:

[(1, 21016938117), (3, 7005646039), (7, 3002419731), (21, 1000806577), (283, 74264799), (401, 52411317), (849, 24754933), (1203, 17470439), (1981, 10609257), (2807, 7487331), (5943, 3536419), (8421, 2495777), (8819, 2383143), (26457, 794381), (61733, 340449), (113483, 185199)]