20681928

素因数分解:

$2^3\times 3^2\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{277}}^1$

素因数の和:367

約数の個数: 96

約数和(自身を含む): 60498360

約数和(自身を除く): 39816432

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 17, 18, 24, 34, 36, 51, 61, 68, 72, 102, 122, 136, 153, 183, 204, 244, 277, 306, 366, 408, 488, 549, 554, 612, 732, 831, 1037, 1098, 1108, 1224, 1464, 1662, 2074, 2196, 2216, 2493, 3111, 3324, 4148, 4392, 4709, 4986, 6222, 6648, 8296, 9333, 9418, 9972, 12444, 14127, 16897, 18666, 18836, 19944, 24888, 28254, 33794, 37332, 37672, 42381, 50691, 56508, 67588, 74664, 84762, 101382, 113016, 135176, 152073, 169524, 202764, 287249, 304146, 339048, 405528, 574498, 608292, 861747, 1148996, 1216584, 1723494, 2297992, 2585241, 3446988, 5170482, 6893976, 10340964, 20681928]

約数ペア:

[(1, 20681928), (2, 10340964), (3, 6893976), (4, 5170482), (6, 3446988), (8, 2585241), (9, 2297992), (12, 1723494), (17, 1216584), (18, 1148996), (24, 861747), (34, 608292), (36, 574498), (51, 405528), (61, 339048), (68, 304146), (72, 287249), (102, 202764), (122, 169524), (136, 152073), (153, 135176), (183, 113016), (204, 101382), (244, 84762), (277, 74664), (306, 67588), (366, 56508), (408, 50691), (488, 42381), (549, 37672), (554, 37332), (612, 33794), (732, 28254), (831, 24888), (1037, 19944), (1098, 18836), (1108, 18666), (1224, 16897), (1464, 14127), (1662, 12444), (2074, 9972), (2196, 9418), (2216, 9333), (2493, 8296), (3111, 6648), (3324, 6222), (4148, 4986), (4392, 4709)]