20421378

素因数分解:

$2^1\times 3^2\times {\mathrm{23}}^1\times {\mathrm{107}}^1\times {\mathrm{461}}^1$

素因数の和:599

約数の個数: 48

約数和(自身を含む): 46702656

約数和(自身を除く): 26281278

約数列:

[1, 2, 3, 6, 9, 18, 23, 46, 69, 107, 138, 207, 214, 321, 414, 461, 642, 922, 963, 1383, 1926, 2461, 2766, 4149, 4922, 7383, 8298, 10603, 14766, 21206, 22149, 31809, 44298, 49327, 63618, 95427, 98654, 147981, 190854, 295962, 443943, 887886, 1134521, 2269042, 3403563, 6807126, 10210689, 20421378]

約数ペア:

[(1, 20421378), (2, 10210689), (3, 6807126), (6, 3403563), (9, 2269042), (18, 1134521), (23, 887886), (46, 443943), (69, 295962), (107, 190854), (138, 147981), (207, 98654), (214, 95427), (321, 63618), (414, 49327), (461, 44298), (642, 31809), (922, 22149), (963, 21206), (1383, 14766), (1926, 10603), (2461, 8298), (2766, 7383), (4149, 4922)]