21958900

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{12917}}^1$

素因数の和:12948

約数の個数: 36

約数和(自身を含む): 50457708

約数和(自身を除く): 28498808

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 50, 68, 85, 100, 170, 340, 425, 850, 1700, 12917, 25834, 51668, 64585, 129170, 219589, 258340, 322925, 439178, 645850, 878356, 1097945, 1291700, 2195890, 4391780, 5489725, 10979450, 21958900]

約数ペア:

[(1, 21958900), (2, 10979450), (4, 5489725), (5, 4391780), (10, 2195890), (17, 1291700), (20, 1097945), (25, 878356), (34, 645850), (50, 439178), (68, 322925), (85, 258340), (100, 219589), (170, 129170), (340, 64585), (425, 51668), (850, 25834), (1700, 12917)]