21979608

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{3191}}^1$

素因数の和:3248

約数の個数: 64

約数和(自身を含む): 64350720

約数和(自身を除く): 42371112

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 41, 42, 56, 82, 84, 123, 164, 168, 246, 287, 328, 492, 574, 861, 984, 1148, 1722, 2296, 3191, 3444, 6382, 6888, 9573, 12764, 19146, 22337, 25528, 38292, 44674, 67011, 76584, 89348, 130831, 134022, 178696, 261662, 268044, 392493, 523324, 536088, 784986, 915817, 1046648, 1569972, 1831634, 2747451, 3139944, 3663268, 5494902, 7326536, 10989804, 21979608]

約数ペア:

[(1, 21979608), (2, 10989804), (3, 7326536), (4, 5494902), (6, 3663268), (7, 3139944), (8, 2747451), (12, 1831634), (14, 1569972), (21, 1046648), (24, 915817), (28, 784986), (41, 536088), (42, 523324), (56, 392493), (82, 268044), (84, 261662), (123, 178696), (164, 134022), (168, 130831), (246, 89348), (287, 76584), (328, 67011), (492, 44674), (574, 38292), (861, 25528), (984, 22337), (1148, 19146), (1722, 12764), (2296, 9573), (3191, 6888), (3444, 6382)]