19896978

素因数分解:

$2^1\times 3^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{4651}}^1$

素因数の和:4710

約数の個数: 32

約数和(自身を含む): 42872832

約数和(自身を除く): 22975854

約数列:

[1, 2, 3, 6, 23, 31, 46, 62, 69, 93, 138, 186, 713, 1426, 2139, 4278, 4651, 9302, 13953, 27906, 106973, 144181, 213946, 288362, 320919, 432543, 641838, 865086, 3316163, 6632326, 9948489, 19896978]

約数ペア:

[(1, 19896978), (2, 9948489), (3, 6632326), (6, 3316163), (23, 865086), (31, 641838), (46, 432543), (62, 320919), (69, 288362), (93, 213946), (138, 144181), (186, 106973), (713, 27906), (1426, 13953), (2139, 9302), (4278, 4651)]