28080171

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{19379}}^1$

素因数の和:19415

約数の個数: 24

約数和(自身を含む): 48372480

約数和(自身を除く): 20292309

約数列:

[1, 3, 7, 9, 21, 23, 63, 69, 161, 207, 483, 1449, 19379, 58137, 135653, 174411, 406959, 445717, 1220877, 1337151, 3120019, 4011453, 9360057, 28080171]

約数ペア:

[(1, 28080171), (3, 9360057), (7, 4011453), (9, 3120019), (21, 1337151), (23, 1220877), (63, 445717), (69, 406959), (161, 174411), (207, 135653), (483, 58137), (1449, 19379)]