18629271

素因数分解:

$3^4\times {\mathrm{349}}^1\times {\mathrm{659}}^1$

素因数の和:1020

約数の個数: 20

約数和(自身を含む): 27951000

約数和(自身を除く): 9321729

約数列:

[1, 3, 9, 27, 81, 349, 659, 1047, 1977, 3141, 5931, 9423, 17793, 28269, 53379, 229991, 689973, 2069919, 6209757, 18629271]

約数ペア:

[(1, 18629271), (3, 6209757), (9, 2069919), (27, 689973), (81, 229991), (349, 53379), (659, 28269), (1047, 17793), (1977, 9423), (3141, 5931)]