209314605

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{20921}}^1$

素因数の和:20981

約数の個数: 32

約数和(自身を含む): 361532160

約数和(自身を除く): 152217555

約数列:

[1, 3, 5, 15, 23, 29, 69, 87, 115, 145, 345, 435, 667, 2001, 3335, 10005, 20921, 62763, 104605, 313815, 481183, 606709, 1443549, 1820127, 2405915, 3033545, 7217745, 9100635, 13954307, 41862921, 69771535, 209314605]

約数ペア:

[(1, 209314605), (3, 69771535), (5, 41862921), (15, 13954307), (23, 9100635), (29, 7217745), (69, 3033545), (87, 2405915), (115, 1820127), (145, 1443549), (345, 606709), (435, 481183), (667, 313815), (2001, 104605), (3335, 62763), (10005, 20921)]