20397654

素因数分解:

$2^1\times 3^2\times {\mathrm{17}}^1\times {\mathrm{191}}^1\times {\mathrm{349}}^1$

素因数の和:565

約数の個数: 48

約数和(自身を含む): 47174400

約数和(自身を除く): 26776746

約数列:

[1, 2, 3, 6, 9, 17, 18, 34, 51, 102, 153, 191, 306, 349, 382, 573, 698, 1047, 1146, 1719, 2094, 3141, 3247, 3438, 5933, 6282, 6494, 9741, 11866, 17799, 19482, 29223, 35598, 53397, 58446, 66659, 106794, 133318, 199977, 399954, 599931, 1133203, 1199862, 2266406, 3399609, 6799218, 10198827, 20397654]

約数ペア:

[(1, 20397654), (2, 10198827), (3, 6799218), (6, 3399609), (9, 2266406), (17, 1199862), (18, 1133203), (34, 599931), (51, 399954), (102, 199977), (153, 133318), (191, 106794), (306, 66659), (349, 58446), (382, 53397), (573, 35598), (698, 29223), (1047, 19482), (1146, 17799), (1719, 11866), (2094, 9741), (3141, 6494), (3247, 6282), (3438, 5933)]