21230433

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{461}}^1$

素因数の和:534

約数の個数: 48

約数和(自身を含む): 38054016

約数和(自身を除く): 16823583

約数列:

[1, 3, 7, 9, 17, 21, 43, 51, 63, 119, 129, 153, 301, 357, 387, 461, 731, 903, 1071, 1383, 2193, 2709, 3227, 4149, 5117, 6579, 7837, 9681, 15351, 19823, 23511, 29043, 46053, 54859, 59469, 70533, 138761, 164577, 178407, 336991, 416283, 493731, 1010973, 1248849, 2358937, 3032919, 7076811, 21230433]

約数ペア:

[(1, 21230433), (3, 7076811), (7, 3032919), (9, 2358937), (17, 1248849), (21, 1010973), (43, 493731), (51, 416283), (63, 336991), (119, 178407), (129, 164577), (153, 138761), (301, 70533), (357, 59469), (387, 54859), (461, 46053), (731, 29043), (903, 23511), (1071, 19823), (1383, 15351), (2193, 9681), (2709, 7837), (3227, 6579), (4149, 5117)]