21669255

素因数分解:

$3^3\times 5^1\times {\mathrm{151}}^1\times {\mathrm{1063}}^1$

素因数の和:1228

約数の個数: 32

約数和(自身を含む): 38814720

約数和(自身を除く): 17145465

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 151, 453, 755, 1063, 1359, 2265, 3189, 4077, 5315, 6795, 9567, 15945, 20385, 28701, 47835, 143505, 160513, 481539, 802565, 1444617, 2407695, 4333851, 7223085, 21669255]

約数ペア:

[(1, 21669255), (3, 7223085), (5, 4333851), (9, 2407695), (15, 1444617), (27, 802565), (45, 481539), (135, 160513), (151, 143505), (453, 47835), (755, 28701), (1063, 20385), (1359, 15945), (2265, 9567), (3189, 6795), (4077, 5315)]