21939976

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1$

素因数の和:178

約数の個数: 64

約数和(自身を含む): 45619200

約数和(自身を除く): 23679224

約数列:

[1, 2, 4, 8, 23, 43, 46, 47, 59, 86, 92, 94, 118, 172, 184, 188, 236, 344, 376, 472, 989, 1081, 1357, 1978, 2021, 2162, 2537, 2714, 2773, 3956, 4042, 4324, 5074, 5428, 5546, 7912, 8084, 8648, 10148, 10856, 11092, 16168, 20296, 22184, 46483, 58351, 63779, 92966, 116702, 119239, 127558, 185932, 233404, 238478, 255116, 371864, 466808, 476956, 510232, 953912, 2742497, 5484994, 10969988, 21939976]

約数ペア:

[(1, 21939976), (2, 10969988), (4, 5484994), (8, 2742497), (23, 953912), (43, 510232), (46, 476956), (47, 466808), (59, 371864), (86, 255116), (92, 238478), (94, 233404), (118, 185932), (172, 127558), (184, 119239), (188, 116702), (236, 92966), (344, 63779), (376, 58351), (472, 46483), (989, 22184), (1081, 20296), (1357, 16168), (1978, 11092), (2021, 10856), (2162, 10148), (2537, 8648), (2714, 8084), (2773, 7912), (3956, 5546), (4042, 5428), (4324, 5074)]