21360285

素因数分解:

$3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{12829}}^1$

素因数の和:12877

約数の個数: 24

約数和(自身を含む): 38028120

約数和(自身を除く): 16667835

約数列:

[1, 3, 5, 9, 15, 37, 45, 111, 185, 333, 555, 1665, 12829, 38487, 64145, 115461, 192435, 474673, 577305, 1424019, 2373365, 4272057, 7120095, 21360285]

約数ペア:

[(1, 21360285), (3, 7120095), (5, 4272057), (9, 2373365), (15, 1424019), (37, 577305), (45, 474673), (111, 192435), (185, 115461), (333, 64145), (555, 38487), (1665, 12829)]