20148453

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{419}}^1$

素因数の和:578

約数の個数: 32

約数和(自身を含む): 32457600

約数和(自身を除く): 12309147

約数列:

[1, 3, 9, 13, 27, 39, 117, 137, 351, 411, 419, 1233, 1257, 1781, 3699, 3771, 5343, 5447, 11313, 16029, 16341, 48087, 49023, 57403, 147069, 172209, 516627, 746239, 1549881, 2238717, 6716151, 20148453]

約数ペア:

[(1, 20148453), (3, 6716151), (9, 2238717), (13, 1549881), (27, 746239), (39, 516627), (117, 172209), (137, 147069), (351, 57403), (411, 49023), (419, 48087), (1233, 16341), (1257, 16029), (1781, 11313), (3699, 5447), (3771, 5343)]