19804155

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{4013}}^1$

素因数の和:4075

約数の個数: 32

約数和(自身を含む): 36993024

約数和(自身を除く): 17188869

約数列:

[1, 3, 5, 7, 15, 21, 35, 47, 105, 141, 235, 329, 705, 987, 1645, 4013, 4935, 12039, 20065, 28091, 60195, 84273, 140455, 188611, 421365, 565833, 943055, 1320277, 2829165, 3960831, 6601385, 19804155]

約数ペア:

[(1, 19804155), (3, 6601385), (5, 3960831), (7, 2829165), (15, 1320277), (21, 943055), (35, 565833), (47, 421365), (105, 188611), (141, 140455), (235, 84273), (329, 60195), (705, 28091), (987, 20065), (1645, 12039), (4013, 4935)]