21900669

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{45343}}^1$

素因数の和:45376

約数の個数: 16

約数和(自身を含む): 34824192

約数和(自身を除く): 12923523

約数列:

[1, 3, 7, 21, 23, 69, 161, 483, 45343, 136029, 317401, 952203, 1042889, 3128667, 7300223, 21900669]

約数ペア:

[(1, 21900669), (3, 7300223), (7, 3128667), (21, 1042889), (23, 952203), (69, 317401), (161, 136029), (483, 45343)]