21000604784

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{42339929}}^1$

素因数の和:42339968

約数の個数: 20

約数和(自身を含む): 42001210560

約数和(自身を除く): 21000605776

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 42339929, 84679858, 169359716, 338719432, 677438864, 1312537799, 2625075598, 5250151196, 10500302392, 21000604784]

約数ペア:

[(1, 21000604784), (2, 10500302392), (4, 5250151196), (8, 2625075598), (16, 1312537799), (31, 677438864), (62, 338719432), (124, 169359716), (248, 84679858), (496, 42339929)]