21553552

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{79241}}^1$

素因数の和:79266

約数の個数: 20

約数和(自身を含む): 44217036

約数和(自身を除く): 22663484

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 79241, 158482, 316964, 633928, 1267856, 1347097, 2694194, 5388388, 10776776, 21553552]

約数ペア:

[(1, 21553552), (2, 10776776), (4, 5388388), (8, 2694194), (16, 1347097), (17, 1267856), (34, 633928), (68, 316964), (136, 158482), (272, 79241)]