21677866

素因数分解:

$2^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{199}}^1\times {\mathrm{251}}^1$

素因数の和:490

約数の個数: 32

約数和(自身を含む): 38707200

約数和(自身を除く): 17029334

約数列:

[1, 2, 7, 14, 31, 62, 199, 217, 251, 398, 434, 502, 1393, 1757, 2786, 3514, 6169, 7781, 12338, 15562, 43183, 49949, 54467, 86366, 99898, 108934, 349643, 699286, 1548419, 3096838, 10838933, 21677866]

約数ペア:

[(1, 21677866), (2, 10838933), (7, 3096838), (14, 1548419), (31, 699286), (62, 349643), (199, 108934), (217, 99898), (251, 86366), (398, 54467), (434, 49949), (502, 43183), (1393, 15562), (1757, 12338), (2786, 7781), (3514, 6169)]