21651472

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{79601}}^1$

素因数の和:79626

約数の個数: 20

約数和(自身を含む): 44417916

約数和(自身を除く): 22766444

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 79601, 159202, 318404, 636808, 1273616, 1353217, 2706434, 5412868, 10825736, 21651472]

約数ペア:

[(1, 21651472), (2, 10825736), (4, 5412868), (8, 2706434), (16, 1353217), (17, 1273616), (34, 636808), (68, 318404), (136, 159202), (272, 79601)]