21263328

素因数分解:

$2^5\times 3^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{101}}^1$

素因数の和:177

約数の個数: 144

約数和(自身を含む): 66162096

約数和(自身を除く): 44898768

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 17, 18, 24, 32, 34, 36, 43, 48, 51, 68, 72, 86, 96, 101, 102, 129, 136, 144, 153, 172, 202, 204, 258, 272, 288, 303, 306, 344, 387, 404, 408, 516, 544, 606, 612, 688, 731, 774, 808, 816, 909, 1032, 1212, 1224, 1376, 1462, 1548, 1616, 1632, 1717, 1818, 2064, 2193, 2424, 2448, 2924, 3096, 3232, 3434, 3636, 4128, 4343, 4386, 4848, 4896, 5151, 5848, 6192, 6579, 6868, 7272, 8686, 8772, 9696, 10302, 11696, 12384, 13029, 13158, 13736, 14544, 15453, 17372, 17544, 20604, 23392, 26058, 26316, 27472, 29088, 30906, 34744, 35088, 39087, 41208, 52116, 52632, 54944, 61812, 69488, 70176, 73831, 78174, 82416, 104232, 105264, 123624, 138976, 147662, 156348, 164832, 208464, 210528, 221493, 247248, 295324, 312696, 416928, 442986, 494496, 590648, 625392, 664479, 885972, 1181296, 1250784, 1328958, 1771944, 2362592, 2657916, 3543888, 5315832, 7087776, 10631664, 21263328]

約数ペア:

[(1, 21263328), (2, 10631664), (3, 7087776), (4, 5315832), (6, 3543888), (8, 2657916), (9, 2362592), (12, 1771944), (16, 1328958), (17, 1250784), (18, 1181296), (24, 885972), (32, 664479), (34, 625392), (36, 590648), (43, 494496), (48, 442986), (51, 416928), (68, 312696), (72, 295324), (86, 247248), (96, 221493), (101, 210528), (102, 208464), (129, 164832), (136, 156348), (144, 147662), (153, 138976), (172, 123624), (202, 105264), (204, 104232), (258, 82416), (272, 78174), (288, 73831), (303, 70176), (306, 69488), (344, 61812), (387, 54944), (404, 52632), (408, 52116), (516, 41208), (544, 39087), (606, 35088), (612, 34744), (688, 30906), (731, 29088), (774, 27472), (808, 26316), (816, 26058), (909, 23392), (1032, 20604), (1212, 17544), (1224, 17372), (1376, 15453), (1462, 14544), (1548, 13736), (1616, 13158), (1632, 13029), (1717, 12384), (1818, 11696), (2064, 10302), (2193, 9696), (2424, 8772), (2448, 8686), (2924, 7272), (3096, 6868), (3232, 6579), (3434, 6192), (3636, 5848), (4128, 5151), (4343, 4896), (4386, 4848)]