21079695

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{15443}}^1$

素因数の和:15471

約数の個数: 32

約数和(自身を含む): 41513472

約数和(自身を除く): 20433777

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 65, 91, 105, 195, 273, 455, 1365, 15443, 46329, 77215, 108101, 200759, 231645, 324303, 540505, 602277, 1003795, 1405313, 1621515, 3011385, 4215939, 7026565, 21079695]

約数ペア:

[(1, 21079695), (3, 7026565), (5, 4215939), (7, 3011385), (13, 1621515), (15, 1405313), (21, 1003795), (35, 602277), (39, 540505), (65, 324303), (91, 231645), (105, 200759), (195, 108101), (273, 77215), (455, 46329), (1365, 15443)]