18577719

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1$

素因数の和:184

約数の個数: 48

約数和(自身を含む): 30326400

約数和(自身を除く): 11748681

約数列:

[1, 3, 9, 17, 29, 51, 53, 79, 87, 153, 159, 237, 261, 477, 493, 711, 901, 1343, 1479, 1537, 2291, 2703, 4029, 4187, 4437, 4611, 6873, 8109, 12087, 12561, 13833, 20619, 26129, 37683, 38947, 71179, 78387, 116841, 121423, 213537, 235161, 350523, 364269, 640611, 1092807, 2064191, 6192573, 18577719]

約数ペア:

[(1, 18577719), (3, 6192573), (9, 2064191), (17, 1092807), (29, 640611), (51, 364269), (53, 350523), (79, 235161), (87, 213537), (153, 121423), (159, 116841), (237, 78387), (261, 71179), (477, 38947), (493, 37683), (711, 26129), (901, 20619), (1343, 13833), (1479, 12561), (1537, 12087), (2291, 8109), (2703, 6873), (4029, 4611), (4187, 4437)]