21967605

素因数分解:

$3^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{4931}}^1$

素因数の和:4959

約数の個数: 40

約数和(自身を含む): 42967584

約数和(自身を除く): 20999979

約数列:

[1, 3, 5, 9, 11, 15, 27, 33, 45, 55, 81, 99, 135, 165, 297, 405, 495, 891, 1485, 4455, 4931, 14793, 24655, 44379, 54241, 73965, 133137, 162723, 221895, 271205, 399411, 488169, 665685, 813615, 1464507, 1997055, 2440845, 4393521, 7322535, 21967605]

約数ペア:

[(1, 21967605), (3, 7322535), (5, 4393521), (9, 2440845), (11, 1997055), (15, 1464507), (27, 813615), (33, 665685), (45, 488169), (55, 399411), (81, 271205), (99, 221895), (135, 162723), (165, 133137), (297, 73965), (405, 54241), (495, 44379), (891, 24655), (1485, 14793), (4455, 4931)]