21319335

素因数分解:

$3^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{1999}}^1$

素因数の和:2092

約数の個数: 32

約数和(自身を含む): 38400000

約数和(自身を除く): 17080665

約数列:

[1, 3, 5, 9, 15, 27, 45, 79, 135, 237, 395, 711, 1185, 1999, 2133, 3555, 5997, 9995, 10665, 17991, 29985, 53973, 89955, 157921, 269865, 473763, 789605, 1421289, 2368815, 4263867, 7106445, 21319335]

約数ペア:

[(1, 21319335), (3, 7106445), (5, 4263867), (9, 2368815), (15, 1421289), (27, 789605), (45, 473763), (79, 269865), (135, 157921), (237, 89955), (395, 53973), (711, 29985), (1185, 17991), (1999, 10665), (2133, 9995), (3555, 5997)]