28677201

素因数分解:

$3^1\times 7^3\times {\mathrm{29}}^1\times {\mathrm{31}}^2$

素因数の和:115

約数の個数: 48

約数和(自身を含む): 47664000

約数和(自身を除く): 18986799

約数列:

[1, 3, 7, 21, 29, 31, 49, 87, 93, 147, 203, 217, 343, 609, 651, 899, 961, 1029, 1421, 1519, 2697, 2883, 4263, 4557, 6293, 6727, 9947, 10633, 18879, 20181, 27869, 29841, 31899, 44051, 47089, 83607, 132153, 141267, 195083, 308357, 329623, 585249, 925071, 988869, 1365581, 4096743, 9559067, 28677201]

約数ペア:

[(1, 28677201), (3, 9559067), (7, 4096743), (21, 1365581), (29, 988869), (31, 925071), (49, 585249), (87, 329623), (93, 308357), (147, 195083), (203, 141267), (217, 132153), (343, 83607), (609, 47089), (651, 44051), (899, 31899), (961, 29841), (1029, 27869), (1421, 20181), (1519, 18879), (2697, 10633), (2883, 9947), (4263, 6727), (4557, 6293)]