20065401

素因数分解:

$3^4\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{131}}^1$

素因数の和:235

約数の個数: 40

約数和(自身を含む): 31688448

約数和(自身を除く): 11623047

約数列:

[1, 3, 9, 27, 31, 61, 81, 93, 131, 183, 279, 393, 549, 837, 1179, 1647, 1891, 2511, 3537, 4061, 4941, 5673, 7991, 10611, 12183, 17019, 23973, 36549, 51057, 71919, 109647, 153171, 215757, 247721, 328941, 647271, 743163, 2229489, 6688467, 20065401]

約数ペア:

[(1, 20065401), (3, 6688467), (9, 2229489), (27, 743163), (31, 647271), (61, 328941), (81, 247721), (93, 215757), (131, 153171), (183, 109647), (279, 71919), (393, 51057), (549, 36549), (837, 23973), (1179, 17019), (1647, 12183), (1891, 10611), (2511, 7991), (3537, 5673), (4061, 4941)]