21000388688

素因数分解:

$2^4\times {\mathrm{41579}}^1\times {\mathrm{31567}}^1$

素因数の和:73154

約数の個数: 20

約数和(自身を含む): 40690520640

約数和(自身を除く): 19690131952

約数列:

[1, 2, 4, 8, 16, 31567, 41579, 63134, 83158, 126268, 166316, 252536, 332632, 505072, 665264, 1312524293, 2625048586, 5250097172, 10500194344, 21000388688]

約数ペア:

[(1, 21000388688), (2, 10500194344), (4, 5250097172), (8, 2625048586), (16, 1312524293), (31567, 665264), (41579, 505072), (63134, 332632), (83158, 252536), (126268, 166316)]