21578922

素因数分解:

$2^1\times 3^2\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{1109}}^1$

素因数の和:1187

約数の個数: 48

約数和(自身を含む): 49870080

約数和(自身を除く): 28291158

約数列:

[1, 2, 3, 6, 9, 18, 23, 46, 47, 69, 94, 138, 141, 207, 282, 414, 423, 846, 1081, 1109, 2162, 2218, 3243, 3327, 6486, 6654, 9729, 9981, 19458, 19962, 25507, 51014, 52123, 76521, 104246, 153042, 156369, 229563, 312738, 459126, 469107, 938214, 1198829, 2397658, 3596487, 7192974, 10789461, 21578922]

約数ペア:

[(1, 21578922), (2, 10789461), (3, 7192974), (6, 3596487), (9, 2397658), (18, 1198829), (23, 938214), (46, 469107), (47, 459126), (69, 312738), (94, 229563), (138, 156369), (141, 153042), (207, 104246), (282, 76521), (414, 52123), (423, 51014), (846, 25507), (1081, 19962), (1109, 19458), (2162, 9981), (2218, 9729), (3243, 6654), (3327, 6486)]