21086262

素因数分解:

$2^1\times 3^2\times {\mathrm{23}}^1\times {\mathrm{31}}^2\times {\mathrm{53}}^1$

素因数の和:146

約数の個数: 72

約数和(自身を含む): 50190192

約数和(自身を除く): 29103930

約数列:

[1, 2, 3, 6, 9, 18, 23, 31, 46, 53, 62, 69, 93, 106, 138, 159, 186, 207, 279, 318, 414, 477, 558, 713, 954, 961, 1219, 1426, 1643, 1922, 2139, 2438, 2883, 3286, 3657, 4278, 4929, 5766, 6417, 7314, 8649, 9858, 10971, 12834, 14787, 17298, 21942, 22103, 29574, 37789, 44206, 50933, 66309, 75578, 101866, 113367, 132618, 152799, 198927, 226734, 305598, 340101, 397854, 458397, 680202, 916794, 1171459, 2342918, 3514377, 7028754, 10543131, 21086262]

約数ペア:

[(1, 21086262), (2, 10543131), (3, 7028754), (6, 3514377), (9, 2342918), (18, 1171459), (23, 916794), (31, 680202), (46, 458397), (53, 397854), (62, 340101), (69, 305598), (93, 226734), (106, 198927), (138, 152799), (159, 132618), (186, 113367), (207, 101866), (279, 75578), (318, 66309), (414, 50933), (477, 44206), (558, 37789), (713, 29574), (954, 22103), (961, 21942), (1219, 17298), (1426, 14787), (1643, 12834), (1922, 10971), (2139, 9858), (2438, 8649), (2883, 7314), (3286, 6417), (3657, 5766), (4278, 4929)]