21465430275

素因数分解:

$3^1\times 5^2\times {\mathrm{197}}^1\times {\mathrm{257}}^1\times {\mathrm{5653}}^1$

素因数の和:6120

約数の個数: 48

約数和(自身を含む): 35814788064

約数和(自身を除く): 14349357789

約数列:

[1, 3, 5, 15, 25, 75, 197, 257, 591, 771, 985, 1285, 2955, 3855, 4925, 5653, 6425, 14775, 16959, 19275, 28265, 50629, 84795, 141325, 151887, 253145, 423975, 759435, 1113641, 1265725, 1452821, 3340923, 3797175, 4358463, 5568205, 7264105, 16704615, 21792315, 27841025, 36320525, 83523075, 108961575, 286205737, 858617211, 1431028685, 4293086055, 7155143425, 21465430275]

約数ペア:

[(1, 21465430275), (3, 7155143425), (5, 4293086055), (15, 1431028685), (25, 858617211), (75, 286205737), (197, 108961575), (257, 83523075), (591, 36320525), (771, 27841025), (985, 21792315), (1285, 16704615), (2955, 7264105), (3855, 5568205), (4925, 4358463), (5653, 3797175), (6425, 3340923), (14775, 1452821), (16959, 1265725), (19275, 1113641), (28265, 759435), (50629, 423975), (84795, 253145), (141325, 151887)]