21460785

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{257}}^1\times {\mathrm{293}}^1$

素因数の和:577

約数の個数: 32

約数和(自身を含む): 36408960

約数和(自身を除く): 14948175

約数列:

[1, 3, 5, 15, 19, 57, 95, 257, 285, 293, 771, 879, 1285, 1465, 3855, 4395, 4883, 5567, 14649, 16701, 24415, 27835, 73245, 75301, 83505, 225903, 376505, 1129515, 1430719, 4292157, 7153595, 21460785]

約数ペア:

[(1, 21460785), (3, 7153595), (5, 4292157), (15, 1430719), (19, 1129515), (57, 376505), (95, 225903), (257, 83505), (285, 75301), (293, 73245), (771, 27835), (879, 24415), (1285, 16701), (1465, 14649), (3855, 5567), (4395, 4883)]