21020976

素因数分解:

$2^4\times 3^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{277}}^1$

素因数の和:339

約数の個数: 120

約数和(自身を含む): 64531584

約数和(自身を除く): 43510608

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 17, 18, 24, 31, 34, 36, 48, 51, 62, 68, 72, 93, 102, 124, 136, 144, 153, 186, 204, 248, 272, 277, 279, 306, 372, 408, 496, 527, 554, 558, 612, 744, 816, 831, 1054, 1108, 1116, 1224, 1488, 1581, 1662, 2108, 2216, 2232, 2448, 2493, 3162, 3324, 4216, 4432, 4464, 4709, 4743, 4986, 6324, 6648, 8432, 8587, 9418, 9486, 9972, 12648, 13296, 14127, 17174, 18836, 18972, 19944, 25296, 25761, 28254, 34348, 37672, 37944, 39888, 42381, 51522, 56508, 68696, 75344, 75888, 77283, 84762, 103044, 113016, 137392, 145979, 154566, 169524, 206088, 226032, 291958, 309132, 339048, 412176, 437937, 583916, 618264, 678096, 875874, 1167832, 1236528, 1313811, 1751748, 2335664, 2627622, 3503496, 5255244, 7006992, 10510488, 21020976]

約数ペア:

[(1, 21020976), (2, 10510488), (3, 7006992), (4, 5255244), (6, 3503496), (8, 2627622), (9, 2335664), (12, 1751748), (16, 1313811), (17, 1236528), (18, 1167832), (24, 875874), (31, 678096), (34, 618264), (36, 583916), (48, 437937), (51, 412176), (62, 339048), (68, 309132), (72, 291958), (93, 226032), (102, 206088), (124, 169524), (136, 154566), (144, 145979), (153, 137392), (186, 113016), (204, 103044), (248, 84762), (272, 77283), (277, 75888), (279, 75344), (306, 68696), (372, 56508), (408, 51522), (496, 42381), (527, 39888), (554, 37944), (558, 37672), (612, 34348), (744, 28254), (816, 25761), (831, 25296), (1054, 19944), (1108, 18972), (1116, 18836), (1224, 17174), (1488, 14127), (1581, 13296), (1662, 12648), (2108, 9972), (2216, 9486), (2232, 9418), (2448, 8587), (2493, 8432), (3162, 6648), (3324, 6324), (4216, 4986), (4432, 4743), (4464, 4709)]