21369867

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{223}}^1\times {\mathrm{1879}}^1$

素因数の和:2122

約数の個数: 16

約数和(自身を含む): 30320640

約数和(自身を除く): 8950773

約数列:

[1, 3, 17, 51, 223, 669, 1879, 3791, 5637, 11373, 31943, 95829, 419017, 1257051, 7123289, 21369867]

約数ペア:

[(1, 21369867), (3, 7123289), (17, 1257051), (51, 419017), (223, 95829), (669, 31943), (1879, 11373), (3791, 5637)]