21000427965

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{797}}^1\times {\mathrm{53231}}^1$

素因数の和:54050

約数の個数: 48

約数和(自身を含む): 39760471296

約数和(自身を除く): 18760043331

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 165, 495, 797, 2391, 3985, 7173, 8767, 11955, 26301, 35865, 43835, 53231, 78903, 131505, 159693, 266155, 394515, 479079, 585541, 798465, 1756623, 2395395, 2927705, 5269869, 8783115, 26349345, 42425107, 127275321, 212125535, 381825963, 466676177, 636376605, 1400028531, 1909129815, 2333380885, 4200085593, 7000142655, 21000427965]

約数ペア:

[(1, 21000427965), (3, 7000142655), (5, 4200085593), (9, 2333380885), (11, 1909129815), (15, 1400028531), (33, 636376605), (45, 466676177), (55, 381825963), (99, 212125535), (165, 127275321), (495, 42425107), (797, 26349345), (2391, 8783115), (3985, 5269869), (7173, 2927705), (8767, 2395395), (11955, 1756623), (26301, 798465), (35865, 585541), (43835, 479079), (53231, 394515), (78903, 266155), (131505, 159693)]