18921430

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{4649}}^1$

素因数の和:4704

約数の個数: 32

約数和(自身を含む): 38167200

約数和(自身を除く): 19245770

約数列:

[1, 2, 5, 10, 11, 22, 37, 55, 74, 110, 185, 370, 407, 814, 2035, 4070, 4649, 9298, 23245, 46490, 51139, 102278, 172013, 255695, 344026, 511390, 860065, 1720130, 1892143, 3784286, 9460715, 18921430]

約数ペア:

[(1, 18921430), (2, 9460715), (5, 3784286), (10, 1892143), (11, 1720130), (22, 860065), (37, 511390), (55, 344026), (74, 255695), (110, 172013), (185, 102278), (370, 51139), (407, 46490), (814, 23245), (2035, 9298), (4070, 4649)]