20954430

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{11087}}^1$

素因数の和:11110

約数の個数: 64

約数和(自身を含む): 63866880

約数和(自身を除く): 42912450

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 63, 70, 90, 105, 126, 135, 189, 210, 270, 315, 378, 630, 945, 1890, 11087, 22174, 33261, 55435, 66522, 77609, 99783, 110870, 155218, 166305, 199566, 232827, 299349, 332610, 388045, 465654, 498915, 598698, 698481, 776090, 997830, 1164135, 1396962, 1496745, 2095443, 2328270, 2993490, 3492405, 4190886, 6984810, 10477215, 20954430]

約数ペア:

[(1, 20954430), (2, 10477215), (3, 6984810), (5, 4190886), (6, 3492405), (7, 2993490), (9, 2328270), (10, 2095443), (14, 1496745), (15, 1396962), (18, 1164135), (21, 997830), (27, 776090), (30, 698481), (35, 598698), (42, 498915), (45, 465654), (54, 388045), (63, 332610), (70, 299349), (90, 232827), (105, 199566), (126, 166305), (135, 155218), (189, 110870), (210, 99783), (270, 77609), (315, 66522), (378, 55435), (630, 33261), (945, 22174), (1890, 11087)]