20810055

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{1231}}^1$

素因数の和:1276

約数の個数: 48

約数和(自身を含む): 40449024

約数和(自身を除く): 19638969

約数列:

[1, 3, 5, 7, 15, 21, 23, 35, 49, 69, 105, 115, 147, 161, 245, 345, 483, 735, 805, 1127, 1231, 2415, 3381, 3693, 5635, 6155, 8617, 16905, 18465, 25851, 28313, 43085, 60319, 84939, 129255, 141565, 180957, 198191, 301595, 424695, 594573, 904785, 990955, 1387337, 2972865, 4162011, 6936685, 20810055]

約数ペア:

[(1, 20810055), (3, 6936685), (5, 4162011), (7, 2972865), (15, 1387337), (21, 990955), (23, 904785), (35, 594573), (49, 424695), (69, 301595), (105, 198191), (115, 180957), (147, 141565), (161, 129255), (245, 84939), (345, 60319), (483, 43085), (735, 28313), (805, 25851), (1127, 18465), (1231, 16905), (2415, 8617), (3381, 6155), (3693, 5635)]