21420612

素因数分解:

$2^2\times 3^4\times {\mathrm{17}}^1\times {\mathrm{3889}}^1$

素因数の和:3922

約数の個数: 60

約数和(自身を含む): 59306940

約数和(自身を除く): 37886328

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 27, 34, 36, 51, 54, 68, 81, 102, 108, 153, 162, 204, 306, 324, 459, 612, 918, 1377, 1836, 2754, 3889, 5508, 7778, 11667, 15556, 23334, 35001, 46668, 66113, 70002, 105003, 132226, 140004, 198339, 210006, 264452, 315009, 396678, 420012, 595017, 630018, 793356, 1190034, 1260036, 1785051, 2380068, 3570102, 5355153, 7140204, 10710306, 21420612]

約数ペア:

[(1, 21420612), (2, 10710306), (3, 7140204), (4, 5355153), (6, 3570102), (9, 2380068), (12, 1785051), (17, 1260036), (18, 1190034), (27, 793356), (34, 630018), (36, 595017), (51, 420012), (54, 396678), (68, 315009), (81, 264452), (102, 210006), (108, 198339), (153, 140004), (162, 132226), (204, 105003), (306, 70002), (324, 66113), (459, 46668), (612, 35001), (918, 23334), (1377, 15556), (1836, 11667), (2754, 7778), (3889, 5508)]