28903005

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{20719}}^1$

素因数の和:20761

約数の個数: 24

約数和(自身を含む): 51717120

約数和(自身を除く): 22814115

約数列:

[1, 3, 5, 9, 15, 31, 45, 93, 155, 279, 465, 1395, 20719, 62157, 103595, 186471, 310785, 642289, 932355, 1926867, 3211445, 5780601, 9634335, 28903005]

約数ペア:

[(1, 28903005), (3, 9634335), (5, 5780601), (9, 3211445), (15, 1926867), (31, 932355), (45, 642289), (93, 310785), (155, 186471), (279, 103595), (465, 62157), (1395, 20719)]