21097918

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{541}}^1$

素因数の和:628

約数の個数: 32

約数和(自身を含む): 35589888

約数和(自身を除く): 14491970

約数列:

[1, 2, 17, 31, 34, 37, 62, 74, 527, 541, 629, 1054, 1082, 1147, 1258, 2294, 9197, 16771, 18394, 19499, 20017, 33542, 38998, 40034, 285107, 340289, 570214, 620527, 680578, 1241054, 10548959, 21097918]

約数ペア:

[(1, 21097918), (2, 10548959), (17, 1241054), (31, 680578), (34, 620527), (37, 570214), (62, 340289), (74, 285107), (527, 40034), (541, 38998), (629, 33542), (1054, 20017), (1082, 19499), (1147, 18394), (1258, 16771), (2294, 9197)]