208656868

素因数分解:

$2^2\times 7^1\times {\mathrm{383}}^1\times {\mathrm{19457}}^1$

素因数の和:19851

約数の個数: 24

約数和(自身を含む): 418424832

約数和(自身を除く): 209767964

約数列:

[1, 2, 4, 7, 14, 28, 383, 766, 1532, 2681, 5362, 10724, 19457, 38914, 77828, 136199, 272398, 544796, 7452031, 14904062, 29808124, 52164217, 104328434, 208656868]

約数ペア:

[(1, 208656868), (2, 104328434), (4, 52164217), (7, 29808124), (14, 14904062), (28, 7452031), (383, 544796), (766, 272398), (1532, 136199), (2681, 77828), (5362, 38914), (10724, 19457)]