21560748

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{479}}^1$

素因数の和:539

約数の個数: 72

約数和(自身を含む): 57200640

約数和(自身を除く): 35639892

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 31, 33, 44, 62, 66, 93, 121, 124, 132, 186, 242, 341, 363, 372, 479, 484, 682, 726, 958, 1023, 1364, 1437, 1452, 1916, 2046, 2874, 3751, 4092, 5269, 5748, 7502, 10538, 11253, 14849, 15004, 15807, 21076, 22506, 29698, 31614, 44547, 45012, 57959, 59396, 63228, 89094, 115918, 163339, 173877, 178188, 231836, 326678, 347754, 490017, 653356, 695508, 980034, 1796729, 1960068, 3593458, 5390187, 7186916, 10780374, 21560748]

約数ペア:

[(1, 21560748), (2, 10780374), (3, 7186916), (4, 5390187), (6, 3593458), (11, 1960068), (12, 1796729), (22, 980034), (31, 695508), (33, 653356), (44, 490017), (62, 347754), (66, 326678), (93, 231836), (121, 178188), (124, 173877), (132, 163339), (186, 115918), (242, 89094), (341, 63228), (363, 59396), (372, 57959), (479, 45012), (484, 44547), (682, 31614), (726, 29698), (958, 22506), (1023, 21076), (1364, 15807), (1437, 15004), (1452, 14849), (1916, 11253), (2046, 10538), (2874, 7502), (3751, 5748), (4092, 5269)]