21287182

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{1013}}^1$

素因数の和:1120

約数の個数: 32

約数和(自身を含む): 38937600

約数和(自身を除く): 17650418

約数列:

[1, 2, 7, 14, 19, 38, 79, 133, 158, 266, 553, 1013, 1106, 1501, 2026, 3002, 7091, 10507, 14182, 19247, 21014, 38494, 80027, 134729, 160054, 269458, 560189, 1120378, 1520513, 3041026, 10643591, 21287182]

約数ペア:

[(1, 21287182), (2, 10643591), (7, 3041026), (14, 1520513), (19, 1120378), (38, 560189), (79, 269458), (133, 160054), (158, 134729), (266, 80027), (553, 38494), (1013, 21014), (1106, 19247), (1501, 14182), (2026, 10507), (3002, 7091)]