21870085

素因数分解:

$5^1\times {\mathrm{83}}^1\times {\mathrm{151}}^1\times {\mathrm{349}}^1$

素因数の和:588

約数の個数: 16

約数和(自身を含む): 26812800

約数和(自身を除く): 4942715

約数列:

[1, 5, 83, 151, 349, 415, 755, 1745, 12533, 28967, 52699, 62665, 144835, 263495, 4374017, 21870085]

約数ペア:

[(1, 21870085), (5, 4374017), (83, 263495), (151, 144835), (349, 62665), (415, 52699), (755, 28967), (1745, 12533)]