18429903

素因数分解:

$3^3\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{227}}^1$

素因数の和:364

約数の個数: 32

約数和(自身を含む): 28600320

約数和(自身を除く): 10170417

約数列:

[1, 3, 9, 27, 31, 93, 97, 227, 279, 291, 681, 837, 873, 2043, 2619, 3007, 6129, 7037, 9021, 21111, 22019, 27063, 63333, 66057, 81189, 189999, 198171, 594513, 682589, 2047767, 6143301, 18429903]

約数ペア:

[(1, 18429903), (3, 6143301), (9, 2047767), (27, 682589), (31, 594513), (93, 198171), (97, 189999), (227, 81189), (279, 66057), (291, 63333), (681, 27063), (837, 22019), (873, 21111), (2043, 9021), (2619, 7037), (3007, 6129)]