20992656

素因数分解:

$2^4\times 3^1\times {\mathrm{41}}^1\times {\mathrm{10667}}^1$

素因数の和:10719

約数の個数: 40

約数和(自身を含む): 55558944

約数和(自身を除く): 34566288

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 41, 48, 82, 123, 164, 246, 328, 492, 656, 984, 1968, 10667, 21334, 32001, 42668, 64002, 85336, 128004, 170672, 256008, 437347, 512016, 874694, 1312041, 1749388, 2624082, 3498776, 5248164, 6997552, 10496328, 20992656]

約数ペア:

[(1, 20992656), (2, 10496328), (3, 6997552), (4, 5248164), (6, 3498776), (8, 2624082), (12, 1749388), (16, 1312041), (24, 874694), (41, 512016), (48, 437347), (82, 256008), (123, 170672), (164, 128004), (246, 85336), (328, 64002), (492, 42668), (656, 32001), (984, 21334), (1968, 10667)]