19871085

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{563}}^1$

素因数の和:765

約数の個数: 32

約数和(自身を含む): 34489728

約数和(自身を除く): 14618643

約数列:

[1, 3, 5, 13, 15, 39, 65, 181, 195, 543, 563, 905, 1689, 2353, 2715, 2815, 7059, 7319, 8445, 11765, 21957, 35295, 36595, 101903, 109785, 305709, 509515, 1324739, 1528545, 3974217, 6623695, 19871085]

約数ペア:

[(1, 19871085), (3, 6623695), (5, 3974217), (13, 1528545), (15, 1324739), (39, 509515), (65, 305709), (181, 109785), (195, 101903), (543, 36595), (563, 35295), (905, 21957), (1689, 11765), (2353, 8445), (2715, 7319), (2815, 7059)]