21493912

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{7879}}^1$

素因数の和:7927

約数の個数: 32

約数和(自身を含む): 45388800

約数和(自身を除く): 23894888

約数列:

[1, 2, 4, 8, 11, 22, 31, 44, 62, 88, 124, 248, 341, 682, 1364, 2728, 7879, 15758, 31516, 63032, 86669, 173338, 244249, 346676, 488498, 693352, 976996, 1953992, 2686739, 5373478, 10746956, 21493912]

約数ペア:

[(1, 21493912), (2, 10746956), (4, 5373478), (8, 2686739), (11, 1953992), (22, 976996), (31, 693352), (44, 488498), (62, 346676), (88, 244249), (124, 173338), (248, 86669), (341, 63032), (682, 31516), (1364, 15758), (2728, 7879)]