20365948

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{191}}^1$

素因数の和:298

約数の個数: 48

約数和(自身を含む): 39997440

約数和(自身を除く): 19631492

約数列:

[1, 2, 4, 19, 23, 38, 46, 61, 76, 92, 122, 191, 244, 382, 437, 764, 874, 1159, 1403, 1748, 2318, 2806, 3629, 4393, 4636, 5612, 7258, 8786, 11651, 14516, 17572, 23302, 26657, 46604, 53314, 83467, 106628, 166934, 221369, 267973, 333868, 442738, 535946, 885476, 1071892, 5091487, 10182974, 20365948]

約数ペア:

[(1, 20365948), (2, 10182974), (4, 5091487), (19, 1071892), (23, 885476), (38, 535946), (46, 442738), (61, 333868), (76, 267973), (92, 221369), (122, 166934), (191, 106628), (244, 83467), (382, 53314), (437, 46604), (764, 26657), (874, 23302), (1159, 17572), (1403, 14516), (1748, 11651), (2318, 8786), (2806, 7258), (3629, 5612), (4393, 4636)]