31485213

素因数分解:

$3^3\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{509}}^1$

素因数の和:626

約数の個数: 32

約数和(自身を含む): 48960000

約数和(自身を除く): 17474787

約数列:

[1, 3, 9, 27, 29, 79, 87, 237, 261, 509, 711, 783, 1527, 2133, 2291, 4581, 6873, 13743, 14761, 20619, 40211, 44283, 61857, 120633, 132849, 361899, 398547, 1085697, 1166119, 3498357, 10495071, 31485213]

約数ペア:

[(1, 31485213), (3, 10495071), (9, 3498357), (27, 1166119), (29, 1085697), (79, 398547), (87, 361899), (237, 132849), (261, 120633), (509, 61857), (711, 44283), (783, 40211), (1527, 20619), (2133, 14761), (2291, 13743), (4581, 6873)]