31980249

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{26717}}^1$

素因数の和:26749

約数の個数: 24

約数和(自身を含む): 55573440

約数和(自身を除く): 23593191

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 399, 1197, 26717, 80151, 187019, 240453, 507623, 561057, 1522869, 1683171, 3553361, 4568607, 10660083, 31980249]

約数ペア:

[(1, 31980249), (3, 10660083), (7, 4568607), (9, 3553361), (19, 1683171), (21, 1522869), (57, 561057), (63, 507623), (133, 240453), (171, 187019), (399, 80151), (1197, 26717)]