21782085

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{3019}}^1$

素因数の和:3077

約数の個数: 32

約数和(自身を含む): 38559360

約数和(自身を除く): 16777275

約数列:

[1, 3, 5, 13, 15, 37, 39, 65, 111, 185, 195, 481, 555, 1443, 2405, 3019, 7215, 9057, 15095, 39247, 45285, 111703, 117741, 196235, 335109, 558515, 588705, 1452139, 1675545, 4356417, 7260695, 21782085]

約数ペア:

[(1, 21782085), (3, 7260695), (5, 4356417), (13, 1675545), (15, 1452139), (37, 588705), (39, 558515), (65, 335109), (111, 196235), (185, 117741), (195, 111703), (481, 45285), (555, 39247), (1443, 15095), (2405, 9057), (3019, 7215)]