17989179

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{631}}^1$

素因数の和:707

約数の個数: 32

約数和(自身を含む): 28030464

約数和(自身を除く): 10041285

約数列:

[1, 3, 13, 17, 39, 43, 51, 129, 221, 559, 631, 663, 731, 1677, 1893, 2193, 8203, 9503, 10727, 24609, 27133, 28509, 32181, 81399, 139451, 352729, 418353, 461261, 1058187, 1383783, 5996393, 17989179]

約数ペア:

[(1, 17989179), (3, 5996393), (13, 1383783), (17, 1058187), (39, 461261), (43, 418353), (51, 352729), (129, 139451), (221, 81399), (559, 32181), (631, 28509), (663, 27133), (731, 24609), (1677, 10727), (1893, 9503), (2193, 8203)]