21304316

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{15619}}^1$

素因数の和:15665

約数の個数: 24

約数和(自身を含む): 41986560

約数和(自身を除く): 20682244

約数列:

[1, 2, 4, 11, 22, 31, 44, 62, 124, 341, 682, 1364, 15619, 31238, 62476, 171809, 343618, 484189, 687236, 968378, 1936756, 5326079, 10652158, 21304316]

約数ペア:

[(1, 21304316), (2, 10652158), (4, 5326079), (11, 1936756), (22, 968378), (31, 687236), (44, 484189), (62, 343618), (124, 171809), (341, 62476), (682, 31238), (1364, 15619)]