21372012

素因数分解:

$2^2\times 3^4\times {\mathrm{65963}}^1$

素因数の和:65979

約数の個数: 30

約数和(自身を含む): 55871508

約数和(自身を除く): 34499496

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 324, 65963, 131926, 197889, 263852, 395778, 593667, 791556, 1187334, 1781001, 2374668, 3562002, 5343003, 7124004, 10686006, 21372012]

約数ペア:

[(1, 21372012), (2, 10686006), (3, 7124004), (4, 5343003), (6, 3562002), (9, 2374668), (12, 1781001), (18, 1187334), (27, 791556), (36, 593667), (54, 395778), (81, 263852), (108, 197889), (162, 131926), (324, 65963)]