253364209

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{173}}^1\times {\mathrm{397}}^1$

素因数の和:625

約数の個数: 32

約数和(自身を含む): 319113216

約数和(自身を除く): 65749007

約数列:

[1, 7, 17, 31, 119, 173, 217, 397, 527, 1211, 2779, 2941, 3689, 5363, 6749, 12307, 20587, 37541, 47243, 68681, 86149, 91171, 209219, 480767, 638197, 1167577, 1464533, 2129111, 8173039, 14903777, 36194887, 253364209]

約数ペア:

[(1, 253364209), (7, 36194887), (17, 14903777), (31, 8173039), (119, 2129111), (173, 1464533), (217, 1167577), (397, 638197), (527, 480767), (1211, 209219), (2779, 91171), (2941, 86149), (3689, 68681), (5363, 47243), (6749, 37541), (12307, 20587)]