21980916

素因数分解:

$2^2\times 3^3\times {\mathrm{23}}^1\times {\mathrm{8849}}^1$

素因数の和:8885

約数の個数: 48

約数和(自身を含む): 59472000

約数和(自身を除く): 37491084

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 27, 36, 46, 54, 69, 92, 108, 138, 207, 276, 414, 621, 828, 1242, 2484, 8849, 17698, 26547, 35396, 53094, 79641, 106188, 159282, 203527, 238923, 318564, 407054, 477846, 610581, 814108, 955692, 1221162, 1831743, 2442324, 3663486, 5495229, 7326972, 10990458, 21980916]

約数ペア:

[(1, 21980916), (2, 10990458), (3, 7326972), (4, 5495229), (6, 3663486), (9, 2442324), (12, 1831743), (18, 1221162), (23, 955692), (27, 814108), (36, 610581), (46, 477846), (54, 407054), (69, 318564), (92, 238923), (108, 203527), (138, 159282), (207, 106188), (276, 79641), (414, 53094), (621, 35396), (828, 26547), (1242, 17698), (2484, 8849)]