72921639

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{9619}}^1$

素因数の和:9667

約数の個数: 24

約数和(自身を含む): 117287040

約数和(自身を除く): 44365401

約数列:

[1, 3, 7, 19, 21, 57, 133, 361, 399, 1083, 2527, 7581, 9619, 28857, 67333, 182761, 201999, 548283, 1279327, 3472459, 3837981, 10417377, 24307213, 72921639]

約数ペア:

[(1, 72921639), (3, 24307213), (7, 10417377), (19, 3837981), (21, 3472459), (57, 1279327), (133, 548283), (361, 201999), (399, 182761), (1083, 67333), (2527, 28857), (7581, 9619)]