420565313

素因数分解:

$7^1\times {\mathrm{31}}^2\times {\mathrm{101}}^1\times {\mathrm{619}}^1$

素因数の和:789

約数の個数: 24

約数和(自身を含む): 502378560

約数和(自身を除く): 81813247

約数列:

[1, 7, 31, 101, 217, 619, 707, 961, 3131, 4333, 6727, 19189, 21917, 62519, 97061, 134323, 437633, 594859, 679427, 1938089, 4164013, 13566623, 60080759, 420565313]

約数ペア:

[(1, 420565313), (7, 60080759), (31, 13566623), (101, 4164013), (217, 1938089), (619, 679427), (707, 594859), (961, 437633), (3131, 134323), (4333, 97061), (6727, 62519), (19189, 21917)]