21635972

素因数分解:

$2^2\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^2$

素因数の和:212

約数の個数: 36

約数和(自身を含む): 40801740

約数和(自身を除く): 19165768

約数列:

[1, 2, 4, 29, 37, 58, 71, 74, 116, 142, 148, 284, 1073, 2059, 2146, 2627, 4118, 4292, 5041, 5254, 8236, 10082, 10508, 20164, 76183, 146189, 152366, 186517, 292378, 304732, 373034, 584756, 746068, 5408993, 10817986, 21635972]

約数ペア:

[(1, 21635972), (2, 10817986), (4, 5408993), (29, 746068), (37, 584756), (58, 373034), (71, 304732), (74, 292378), (116, 186517), (142, 152366), (148, 146189), (284, 76183), (1073, 20164), (2059, 10508), (2146, 10082), (2627, 8236), (4118, 5254), (4292, 5041)]