19989918

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{85427}}^1$

素因数の和:85448

約数の個数: 24

約数和(自身を含む): 46643688

約数和(自身を除く): 26653770

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 117, 234, 85427, 170854, 256281, 512562, 768843, 1110551, 1537686, 2221102, 3331653, 6663306, 9994959, 19989918]

約数ペア:

[(1, 19989918), (2, 9994959), (3, 6663306), (6, 3331653), (9, 2221102), (13, 1537686), (18, 1110551), (26, 768843), (39, 512562), (78, 256281), (117, 170854), (234, 85427)]