21455016

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{449}}^1$

素因数の和:650

約数の個数: 64

約数和(自身を含む): 58968000

約数和(自身を除く): 37512984

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 22, 24, 33, 44, 66, 88, 132, 181, 264, 362, 449, 543, 724, 898, 1086, 1347, 1448, 1796, 1991, 2172, 2694, 3592, 3982, 4344, 4939, 5388, 5973, 7964, 9878, 10776, 11946, 14817, 15928, 19756, 23892, 29634, 39512, 47784, 59268, 81269, 118536, 162538, 243807, 325076, 487614, 650152, 893959, 975228, 1787918, 1950456, 2681877, 3575836, 5363754, 7151672, 10727508, 21455016]

約数ペア:

[(1, 21455016), (2, 10727508), (3, 7151672), (4, 5363754), (6, 3575836), (8, 2681877), (11, 1950456), (12, 1787918), (22, 975228), (24, 893959), (33, 650152), (44, 487614), (66, 325076), (88, 243807), (132, 162538), (181, 118536), (264, 81269), (362, 59268), (449, 47784), (543, 39512), (724, 29634), (898, 23892), (1086, 19756), (1347, 15928), (1448, 14817), (1796, 11946), (1991, 10776), (2172, 9878), (2694, 7964), (3592, 5973), (3982, 5388), (4344, 4939)]