21990672

素因数分解:

$2^4\times 3^2\times {\mathrm{11}}^1\times {\mathrm{13883}}^1$

素因数の和:13908

約数の個数: 60

約数和(自身を含む): 67143024

約数和(自身を除く): 45152352

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 16, 18, 22, 24, 33, 36, 44, 48, 66, 72, 88, 99, 132, 144, 176, 198, 264, 396, 528, 792, 1584, 13883, 27766, 41649, 55532, 83298, 111064, 124947, 152713, 166596, 222128, 249894, 305426, 333192, 458139, 499788, 610852, 666384, 916278, 999576, 1221704, 1374417, 1832556, 1999152, 2443408, 2748834, 3665112, 5497668, 7330224, 10995336, 21990672]

約数ペア:

[(1, 21990672), (2, 10995336), (3, 7330224), (4, 5497668), (6, 3665112), (8, 2748834), (9, 2443408), (11, 1999152), (12, 1832556), (16, 1374417), (18, 1221704), (22, 999576), (24, 916278), (33, 666384), (36, 610852), (44, 499788), (48, 458139), (66, 333192), (72, 305426), (88, 249894), (99, 222128), (132, 166596), (144, 152713), (176, 124947), (198, 111064), (264, 83298), (396, 55532), (528, 41649), (792, 27766), (1584, 13883)]