20971830

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{617}}^1$

素因数の和:741

約数の個数: 64

約数和(自身を含む): 55531008

約数和(自身を除く): 34559178

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 55, 66, 103, 110, 165, 206, 309, 330, 515, 617, 618, 1030, 1133, 1234, 1545, 1851, 2266, 3085, 3090, 3399, 3702, 5665, 6170, 6787, 6798, 9255, 11330, 13574, 16995, 18510, 20361, 33935, 33990, 40722, 63551, 67870, 101805, 127102, 190653, 203610, 317755, 381306, 635510, 699061, 953265, 1398122, 1906530, 2097183, 3495305, 4194366, 6990610, 10485915, 20971830]

約数ペア:

[(1, 20971830), (2, 10485915), (3, 6990610), (5, 4194366), (6, 3495305), (10, 2097183), (11, 1906530), (15, 1398122), (22, 953265), (30, 699061), (33, 635510), (55, 381306), (66, 317755), (103, 203610), (110, 190653), (165, 127102), (206, 101805), (309, 67870), (330, 63551), (515, 40722), (617, 33990), (618, 33935), (1030, 20361), (1133, 18510), (1234, 16995), (1545, 13574), (1851, 11330), (2266, 9255), (3085, 6798), (3090, 6787), (3399, 6170), (3702, 5665)]