28338513

素因数分解:

$3^1\times 7^2\times {\mathrm{263}}^1\times {\mathrm{733}}^1$

素因数の和:1013

約数の個数: 24

約数和(自身を含む): 44180928

約数和(自身を除く): 15842415

約数列:

[1, 3, 7, 21, 49, 147, 263, 733, 789, 1841, 2199, 5131, 5523, 12887, 15393, 35917, 38661, 107751, 192779, 578337, 1349453, 4048359, 9446171, 28338513]

約数ペア:

[(1, 28338513), (3, 9446171), (7, 4048359), (21, 1349453), (49, 578337), (147, 192779), (263, 107751), (733, 38661), (789, 35917), (1841, 15393), (2199, 12887), (5131, 5523)]