21477205

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{6829}}^1$

素因数の和:6888

約数の個数: 16

約数和(自身を含む): 28030320

約数和(自身を除く): 6553115

約数列:

[1, 5, 17, 37, 85, 185, 629, 3145, 6829, 34145, 116093, 252673, 580465, 1263365, 4295441, 21477205]

約数ペア:

[(1, 21477205), (5, 4295441), (17, 1263365), (37, 580465), (85, 252673), (185, 116093), (629, 34145), (3145, 6829)]