21414315

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{193}}^1\times {\mathrm{569}}^1$

素因数の和:783

約数の個数: 32

約数和(自身を含む): 37154880

約数和(自身を除く): 15740565

約数列:

[1, 3, 5, 13, 15, 39, 65, 193, 195, 569, 579, 965, 1707, 2509, 2845, 2895, 7397, 7527, 8535, 12545, 22191, 36985, 37635, 109817, 110955, 329451, 549085, 1427621, 1647255, 4282863, 7138105, 21414315]

約数ペア:

[(1, 21414315), (3, 7138105), (5, 4282863), (13, 1647255), (15, 1427621), (39, 549085), (65, 329451), (193, 110955), (195, 109817), (569, 37635), (579, 36985), (965, 22191), (1707, 12545), (2509, 8535), (2845, 7527), (2895, 7397)]