18378555

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{307}}^2$

素因数の和:635

約数の個数: 24

約数和(自身を含む): 31771152

約数和(自身を除く): 13392597

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 307, 921, 1535, 3991, 4605, 11973, 19955, 59865, 94249, 282747, 471245, 1225237, 1413735, 3675711, 6126185, 18378555]

約数ペア:

[(1, 18378555), (3, 6126185), (5, 3675711), (13, 1413735), (15, 1225237), (39, 471245), (65, 282747), (195, 94249), (307, 59865), (921, 19955), (1535, 11973), (3991, 4605)]