21071031839

素因数分解:

${\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{277}}^1\times {\mathrm{1307}}^1$

素因数の和:1656

約数の個数: 48

約数和(自身を含む): 25728579744

約数和(自身を除く): 4657547905

約数列:

[1, 11, 13, 37, 121, 143, 277, 407, 481, 1307, 1573, 3047, 3601, 4477, 5291, 10249, 14377, 16991, 33517, 39611, 48359, 58201, 112739, 133237, 158147, 186901, 362039, 435721, 531949, 628667, 1240129, 1465607, 2055911, 3982429, 4706507, 5851439, 6915337, 13395443, 16121677, 43806719, 51771577, 76068707, 147349873, 174140759, 569487347, 1620848603, 1915548349, 21071031839]

約数ペア:

[(1, 21071031839), (11, 1915548349), (13, 1620848603), (37, 569487347), (121, 174140759), (143, 147349873), (277, 76068707), (407, 51771577), (481, 43806719), (1307, 16121677), (1573, 13395443), (3047, 6915337), (3601, 5851439), (4477, 4706507), (5291, 3982429), (10249, 2055911), (14377, 1465607), (16991, 1240129), (33517, 628667), (39611, 531949), (48359, 435721), (58201, 362039), (112739, 186901), (133237, 158147)]