17988215

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{281}}^1$

素因数の和:383

約数の個数: 32

約数和(自身を含む): 25989120

約数和(自身を除く): 8000905

約数列:

[1, 5, 7, 31, 35, 59, 155, 217, 281, 295, 413, 1085, 1405, 1829, 1967, 2065, 8711, 9145, 9835, 12803, 16579, 43555, 60977, 64015, 82895, 116053, 304885, 513949, 580265, 2569745, 3597643, 17988215]

約数ペア:

[(1, 17988215), (5, 3597643), (7, 2569745), (31, 580265), (35, 513949), (59, 304885), (155, 116053), (217, 82895), (281, 64015), (295, 60977), (413, 43555), (1085, 16579), (1405, 12803), (1829, 9835), (1967, 9145), (2065, 8711)]