20278743

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{103}}^1$

素因数の和:239

約数の個数: 32

約数和(自身を含む): 29552640

約数和(自身を除く): 9273897

約数列:

[1, 3, 29, 31, 73, 87, 93, 103, 219, 309, 899, 2117, 2263, 2697, 2987, 3193, 6351, 6789, 7519, 8961, 9579, 22557, 65627, 92597, 196881, 218051, 233089, 277791, 654153, 699267, 6759581, 20278743]

約数ペア:

[(1, 20278743), (3, 6759581), (29, 699267), (31, 654153), (73, 277791), (87, 233089), (93, 218051), (103, 196881), (219, 92597), (309, 65627), (899, 22557), (2117, 9579), (2263, 8961), (2697, 7519), (2987, 6789), (3193, 6351)]