21041445830

素因数分解:

$2^1\times 5^1\times {\mathrm{523}}^1\times {\mathrm{4023221}}^1$

素因数の和:4023751

約数の個数: 16

約数和(自身を含む): 37947029904

約数和(自身を除く): 16905584074

約数列:

[1, 2, 5, 10, 523, 1046, 2615, 5230, 4023221, 8046442, 20116105, 40232210, 2104144583, 4208289166, 10520722915, 21041445830]

約数ペア:

[(1, 21041445830), (2, 10520722915), (5, 4208289166), (10, 2104144583), (523, 40232210), (1046, 20116105), (2615, 8046442), (5230, 4023221)]