551598719

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{127}}^1\times {\mathrm{509}}^1$

素因数の和:719

約数の個数: 32

約数和(自身を含む): 676823040

約数和(自身を除く): 125224321

約数列:

[1, 7, 23, 53, 127, 161, 371, 509, 889, 1219, 2921, 3563, 6731, 8533, 11707, 20447, 26977, 47117, 64643, 81949, 154813, 188839, 452501, 620471, 1083691, 1486789, 3426079, 4343297, 10407523, 23982553, 78799817, 551598719]

約数ペア:

[(1, 551598719), (7, 78799817), (23, 23982553), (53, 10407523), (127, 4343297), (161, 3426079), (371, 1486789), (509, 1083691), (889, 620471), (1219, 452501), (2921, 188839), (3563, 154813), (6731, 81949), (8533, 64643), (11707, 47117), (20447, 26977)]