1800309

素因数分解:

$3^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{331}}^1$

素因数の和:385

約数の個数: 24

約数和(自身を含む): 2876448

約数和(自身を除く): 1076139

約数列:

[1, 3, 7, 21, 37, 49, 111, 147, 259, 331, 777, 993, 1813, 2317, 5439, 6951, 12247, 16219, 36741, 48657, 85729, 257187, 600103, 1800309]

約数ペア:

[(1, 1800309), (3, 600103), (7, 257187), (21, 85729), (37, 48657), (49, 36741), (111, 16219), (147, 12247), (259, 6951), (331, 5439), (777, 2317), (993, 1813)]