17865972

素因数分解:

$2^2\times 3^2\times {\mathrm{29}}^1\times {\mathrm{109}}^1\times {\mathrm{157}}^1$

素因数の和:305

約数の個数: 72

約数和(自身を含む): 47447400

約数和(自身を除く): 29581428

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 29, 36, 58, 87, 109, 116, 157, 174, 218, 261, 314, 327, 348, 436, 471, 522, 628, 654, 942, 981, 1044, 1308, 1413, 1884, 1962, 2826, 3161, 3924, 4553, 5652, 6322, 9106, 9483, 12644, 13659, 17113, 18212, 18966, 27318, 28449, 34226, 37932, 40977, 51339, 54636, 56898, 68452, 81954, 102678, 113796, 154017, 163908, 205356, 308034, 496277, 616068, 992554, 1488831, 1985108, 2977662, 4466493, 5955324, 8932986, 17865972]

約数ペア:

[(1, 17865972), (2, 8932986), (3, 5955324), (4, 4466493), (6, 2977662), (9, 1985108), (12, 1488831), (18, 992554), (29, 616068), (36, 496277), (58, 308034), (87, 205356), (109, 163908), (116, 154017), (157, 113796), (174, 102678), (218, 81954), (261, 68452), (314, 56898), (327, 54636), (348, 51339), (436, 40977), (471, 37932), (522, 34226), (628, 28449), (654, 27318), (942, 18966), (981, 18212), (1044, 17113), (1308, 13659), (1413, 12644), (1884, 9483), (1962, 9106), (2826, 6322), (3161, 5652), (3924, 4553)]