18019001

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{383}}^1$

素因数の和:461

約数の個数: 32

約数和(自身を含む): 24772608

約数和(自身を除く): 6753607

約数列:

[1, 7, 11, 13, 47, 77, 91, 143, 329, 383, 517, 611, 1001, 2681, 3619, 4213, 4277, 4979, 6721, 18001, 29491, 34853, 47047, 54769, 126007, 198011, 234013, 383383, 1386077, 1638091, 2574143, 18019001]

約数ペア:

[(1, 18019001), (7, 2574143), (11, 1638091), (13, 1386077), (47, 383383), (77, 234013), (91, 198011), (143, 126007), (329, 54769), (383, 47047), (517, 34853), (611, 29491), (1001, 18001), (2681, 6721), (3619, 4979), (4213, 4277)]