21393770

素因数分解:

$2^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{863}}^1$

素因数の和:974

約数の個数: 32

約数和(自身を含む): 40186368

約数和(自身を除く): 18792598

約数列:

[1, 2, 5, 10, 37, 67, 74, 134, 185, 335, 370, 670, 863, 1726, 2479, 4315, 4958, 8630, 12395, 24790, 31931, 57821, 63862, 115642, 159655, 289105, 319310, 578210, 2139377, 4278754, 10696885, 21393770]

約数ペア:

[(1, 21393770), (2, 10696885), (5, 4278754), (10, 2139377), (37, 578210), (67, 319310), (74, 289105), (134, 159655), (185, 115642), (335, 63862), (370, 57821), (670, 31931), (863, 24790), (1726, 12395), (2479, 8630), (4315, 4958)]