20672323

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{223}}^1$

素因数の和:307

約数の個数: 32

約数和(自身を含む): 27095040

約数和(自身を除く): 6422717

約数列:

[1, 7, 17, 19, 41, 119, 133, 223, 287, 323, 697, 779, 1561, 2261, 3791, 4237, 4879, 5453, 9143, 13243, 26537, 29659, 64001, 72029, 92701, 155431, 173717, 504203, 1088017, 1216019, 2953189, 20672323]

約数ペア:

[(1, 20672323), (7, 2953189), (17, 1216019), (19, 1088017), (41, 504203), (119, 173717), (133, 155431), (223, 92701), (287, 72029), (323, 64001), (697, 29659), (779, 26537), (1561, 13243), (2261, 9143), (3791, 5453), (4237, 4879)]