20921812

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{11969}}^1$

素因数の和:12015

約数の個数: 24

約数和(自身を含む): 40219200

約数和(自身を除く): 19297388

約数列:

[1, 2, 4, 19, 23, 38, 46, 76, 92, 437, 874, 1748, 11969, 23938, 47876, 227411, 275287, 454822, 550574, 909644, 1101148, 5230453, 10460906, 20921812]

約数ペア:

[(1, 20921812), (2, 10460906), (4, 5230453), (19, 1101148), (23, 909644), (38, 550574), (46, 454822), (76, 275287), (92, 227411), (437, 47876), (874, 23938), (1748, 11969)]