21352695

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{15643}}^1$

素因数の和:15671

約数の個数: 32

約数和(自身を含む): 42051072

約数和(自身を除く): 20698377

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 65, 91, 105, 195, 273, 455, 1365, 15643, 46929, 78215, 109501, 203359, 234645, 328503, 547505, 610077, 1016795, 1423513, 1642515, 3050385, 4270539, 7117565, 21352695]

約数ペア:

[(1, 21352695), (3, 7117565), (5, 4270539), (7, 3050385), (13, 1642515), (15, 1423513), (21, 1016795), (35, 610077), (39, 547505), (65, 328503), (91, 234645), (105, 203359), (195, 109501), (273, 78215), (455, 46929), (1365, 15643)]