21261435

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{1019}}^1$

素因数の和:1147

約数の個数: 32

約数和(自身を含む): 37013760

約数和(自身を除く): 15752325

約数列:

[1, 3, 5, 13, 15, 39, 65, 107, 195, 321, 535, 1019, 1391, 1605, 3057, 4173, 5095, 6955, 13247, 15285, 20865, 39741, 66235, 109033, 198705, 327099, 545165, 1417429, 1635495, 4252287, 7087145, 21261435]

約数ペア:

[(1, 21261435), (3, 7087145), (5, 4252287), (13, 1635495), (15, 1417429), (39, 545165), (65, 327099), (107, 198705), (195, 109033), (321, 66235), (535, 39741), (1019, 20865), (1391, 15285), (1605, 13247), (3057, 6955), (4173, 5095)]