19398285

素因数分解:

$3^4\times 5^1\times {\mathrm{211}}^1\times {\mathrm{227}}^1$

素因数の和:455

約数の個数: 40

約数和(自身を含む): 35091936

約数和(自身を除く): 15693651

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 211, 227, 405, 633, 681, 1055, 1135, 1899, 2043, 3165, 3405, 5697, 6129, 9495, 10215, 17091, 18387, 28485, 30645, 47897, 85455, 91935, 143691, 239485, 431073, 718455, 1293219, 2155365, 3879657, 6466095, 19398285]

約数ペア:

[(1, 19398285), (3, 6466095), (5, 3879657), (9, 2155365), (15, 1293219), (27, 718455), (45, 431073), (81, 239485), (135, 143691), (211, 91935), (227, 85455), (405, 47897), (633, 30645), (681, 28485), (1055, 18387), (1135, 17091), (1899, 10215), (2043, 9495), (3165, 6129), (3405, 5697)]