21507255

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{2069}}^1$

素因数の和:2101

約数の個数: 64

約数和(自身を含む): 47692800

約数和(自身を除く): 26185545

約数列:

[1, 3, 5, 7, 9, 11, 15, 21, 27, 33, 35, 45, 55, 63, 77, 99, 105, 135, 165, 189, 231, 297, 315, 385, 495, 693, 945, 1155, 1485, 2069, 2079, 3465, 6207, 10345, 10395, 14483, 18621, 22759, 31035, 43449, 55863, 68277, 72415, 93105, 113795, 130347, 159313, 204831, 217245, 279315, 341385, 391041, 477939, 614493, 651735, 796565, 1024155, 1433817, 1955205, 2389695, 3072465, 4301451, 7169085, 21507255]

約数ペア:

[(1, 21507255), (3, 7169085), (5, 4301451), (7, 3072465), (9, 2389695), (11, 1955205), (15, 1433817), (21, 1024155), (27, 796565), (33, 651735), (35, 614493), (45, 477939), (55, 391041), (63, 341385), (77, 279315), (99, 217245), (105, 204831), (135, 159313), (165, 130347), (189, 113795), (231, 93105), (297, 72415), (315, 68277), (385, 55863), (495, 43449), (693, 31035), (945, 22759), (1155, 18621), (1485, 14483), (2069, 10395), (2079, 10345), (3465, 6207)]