217281736

素因数分解:

$2^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{168697}}^1$

素因数の和:168733

約数の個数: 32

約数和(自身を含む): 485850240

約数和(自身を除く): 268568504

約数列:

[1, 2, 4, 7, 8, 14, 23, 28, 46, 56, 92, 161, 184, 322, 644, 1288, 168697, 337394, 674788, 1180879, 1349576, 2361758, 3880031, 4723516, 7760062, 9447032, 15520124, 27160217, 31040248, 54320434, 108640868, 217281736]

約数ペア:

[(1, 217281736), (2, 108640868), (4, 54320434), (7, 31040248), (8, 27160217), (14, 15520124), (23, 9447032), (28, 7760062), (46, 4723516), (56, 3880031), (92, 2361758), (161, 1349576), (184, 1180879), (322, 674788), (644, 337394), (1288, 168697)]