20218561572

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{311}}^1\times {\mathrm{492511}}^1$

素因数の和:492840

約数の個数: 48

約数和(自身を含む): 51631017984

約数和(自身を除く): 31412456412

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 33, 44, 66, 132, 311, 622, 933, 1244, 1866, 3421, 3732, 6842, 10263, 13684, 20526, 41052, 492511, 985022, 1477533, 1970044, 2955066, 5417621, 5910132, 10835242, 16252863, 21670484, 32505726, 65011452, 153170921, 306341842, 459512763, 612683684, 919025526, 1684880131, 1838051052, 3369760262, 5054640393, 6739520524, 10109280786, 20218561572]

約数ペア:

[(1, 20218561572), (2, 10109280786), (3, 6739520524), (4, 5054640393), (6, 3369760262), (11, 1838051052), (12, 1684880131), (22, 919025526), (33, 612683684), (44, 459512763), (66, 306341842), (132, 153170921), (311, 65011452), (622, 32505726), (933, 21670484), (1244, 16252863), (1866, 10835242), (3421, 5910132), (3732, 5417621), (6842, 2955066), (10263, 1970044), (13684, 1477533), (20526, 985022), (41052, 492511)]