21295729

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{7549}}^1$

素因数の和:7600

約数の個数: 16

約数和(自身を含む): 27059200

約数和(自身を除く): 5763471

約数列:

[1, 7, 13, 31, 91, 217, 403, 2821, 7549, 52843, 98137, 234019, 686959, 1638133, 3042247, 21295729]

約数ペア:

[(1, 21295729), (7, 3042247), (13, 1638133), (31, 686959), (91, 234019), (217, 98137), (403, 52843), (2821, 7549)]