21167309870

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{302390141}}^1$

素因数の和:302390155

約数の個数: 16

約数和(自身を含む): 43544180448

約数和(自身を除く): 22376870578

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 302390141, 604780282, 1511950705, 2116730987, 3023901410, 4233461974, 10583654935, 21167309870]

約数ペア:

[(1, 21167309870), (2, 10583654935), (5, 4233461974), (7, 3023901410), (10, 2116730987), (14, 1511950705), (35, 604780282), (70, 302390141)]