21008085

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{8699}}^1$

素因数の和:8737

約数の個数: 32

約数和(自身を含む): 40089600

約数和(自身を除く): 19081515

約数列:

[1, 3, 5, 7, 15, 21, 23, 35, 69, 105, 115, 161, 345, 483, 805, 2415, 8699, 26097, 43495, 60893, 130485, 182679, 200077, 304465, 600231, 913395, 1000385, 1400539, 3001155, 4201617, 7002695, 21008085]

約数ペア:

[(1, 21008085), (3, 7002695), (5, 4201617), (7, 3001155), (15, 1400539), (21, 1000385), (23, 913395), (35, 600231), (69, 304465), (105, 200077), (115, 182679), (161, 130485), (345, 60893), (483, 43495), (805, 26097), (2415, 8699)]