21759796

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{4507}}^1$

素因数の和:4599

約数の個数: 24

約数和(自身を含む): 40896576

約数和(自身を除く): 19136780

約数列:

[1, 2, 4, 17, 34, 68, 71, 142, 284, 1207, 2414, 4507, 4828, 9014, 18028, 76619, 153238, 306476, 319997, 639994, 1279988, 5439949, 10879898, 21759796]

約数ペア:

[(1, 21759796), (2, 10879898), (4, 5439949), (17, 1279988), (34, 639994), (68, 319997), (71, 306476), (142, 153238), (284, 76619), (1207, 18028), (2414, 9014), (4507, 4828)]