205128081

素因数分解:

$3^2\times {\mathrm{109}}^1\times {\mathrm{211}}^1\times {\mathrm{991}}^1$

素因数の和:1317

約数の個数: 24

約数和(自身を含む): 300734720

約数和(自身を除く): 95606639

約数列:

[1, 3, 9, 109, 211, 327, 633, 981, 991, 1899, 2973, 8919, 22999, 68997, 108019, 206991, 209101, 324057, 627303, 972171, 1881909, 22792009, 68376027, 205128081]

約数ペア:

[(1, 205128081), (3, 68376027), (9, 22792009), (109, 1881909), (211, 972171), (327, 627303), (633, 324057), (981, 209101), (991, 206991), (1899, 108019), (2973, 68997), (8919, 22999)]