19864976

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{199}}^1\times {\mathrm{367}}^1$

素因数の和:591

約数の個数: 40

約数和(自身を含む): 41068800

約数和(自身を除く): 21203824

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 199, 272, 367, 398, 734, 796, 1468, 1592, 2936, 3184, 3383, 5872, 6239, 6766, 12478, 13532, 24956, 27064, 49912, 54128, 73033, 99824, 146066, 292132, 584264, 1168528, 1241561, 2483122, 4966244, 9932488, 19864976]

約数ペア:

[(1, 19864976), (2, 9932488), (4, 4966244), (8, 2483122), (16, 1241561), (17, 1168528), (34, 584264), (68, 292132), (136, 146066), (199, 99824), (272, 73033), (367, 54128), (398, 49912), (734, 27064), (796, 24956), (1468, 13532), (1592, 12478), (2936, 6766), (3184, 6239), (3383, 5872)]