19731243

素因数分解:

$3^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1\times {\mathrm{211}}^1$

素因数の和:355

約数の個数: 32

約数和(自身を含む): 31124992

約数和(自身を除く): 11393749

約数列:

[1, 3, 7, 21, 61, 73, 183, 211, 219, 427, 511, 633, 1281, 1477, 1533, 4431, 4453, 12871, 13359, 15403, 31171, 38613, 46209, 90097, 93513, 107821, 270291, 323463, 939583, 2818749, 6577081, 19731243]

約数ペア:

[(1, 19731243), (3, 6577081), (7, 2818749), (21, 939583), (61, 323463), (73, 270291), (183, 107821), (211, 93513), (219, 90097), (427, 46209), (511, 38613), (633, 31171), (1281, 15403), (1477, 13359), (1533, 12871), (4431, 4453)]