20257938

素因数分解:

$2^1\times 3^5\times {\mathrm{73}}^1\times {\mathrm{571}}^1$

素因数の和:661

約数の個数: 48

約数和(自身を含む): 46222176

約数和(自身を除く): 25964238

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 73, 81, 146, 162, 219, 243, 438, 486, 571, 657, 1142, 1314, 1713, 1971, 3426, 3942, 5139, 5913, 10278, 11826, 15417, 17739, 30834, 35478, 41683, 46251, 83366, 92502, 125049, 138753, 250098, 277506, 375147, 750294, 1125441, 2250882, 3376323, 6752646, 10128969, 20257938]

約数ペア:

[(1, 20257938), (2, 10128969), (3, 6752646), (6, 3376323), (9, 2250882), (18, 1125441), (27, 750294), (54, 375147), (73, 277506), (81, 250098), (146, 138753), (162, 125049), (219, 92502), (243, 83366), (438, 46251), (486, 41683), (571, 35478), (657, 30834), (1142, 17739), (1314, 15417), (1713, 11826), (1971, 10278), (3426, 5913), (3942, 5139)]