21801868

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{9349}}^1$

素因数の和:9417

約数の個数: 24

約数和(自身を含む): 42411600

約数和(自身を除く): 20609732

約数列:

[1, 2, 4, 11, 22, 44, 53, 106, 212, 583, 1166, 2332, 9349, 18698, 37396, 102839, 205678, 411356, 495497, 990994, 1981988, 5450467, 10900934, 21801868]

約数ペア:

[(1, 21801868), (2, 10900934), (4, 5450467), (11, 1981988), (22, 990994), (44, 495497), (53, 411356), (106, 205678), (212, 102839), (583, 37396), (1166, 18698), (2332, 9349)]