21097521

素因数分解:

$3^2\times {\mathrm{61}}^1\times {\mathrm{83}}^1\times {\mathrm{463}}^1$

素因数の和:613

約数の個数: 24

約数和(自身を含む): 31414656

約数和(自身を除く): 10317135

約数列:

[1, 3, 9, 61, 83, 183, 249, 463, 549, 747, 1389, 4167, 5063, 15189, 28243, 38429, 45567, 84729, 115287, 254187, 345861, 2344169, 7032507, 21097521]

約数ペア:

[(1, 21097521), (3, 7032507), (9, 2344169), (61, 345861), (83, 254187), (183, 115287), (249, 84729), (463, 45567), (549, 38429), (747, 28243), (1389, 15189), (4167, 5063)]