215321876

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{99871}}^1$

素因数の和:99900

約数の個数: 36

約数和(自身を含む): 478187136

約数和(自身を除く): 262865260

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 49, 77, 98, 154, 196, 308, 539, 1078, 2156, 99871, 199742, 399484, 699097, 1098581, 1398194, 2197162, 2796388, 4394324, 4893679, 7690067, 9787358, 15380134, 19574716, 30760268, 53830469, 107660938, 215321876]

約数ペア:

[(1, 215321876), (2, 107660938), (4, 53830469), (7, 30760268), (11, 19574716), (14, 15380134), (22, 9787358), (28, 7690067), (44, 4893679), (49, 4394324), (77, 2796388), (98, 2197162), (154, 1398194), (196, 1098581), (308, 699097), (539, 399484), (1078, 199742), (2156, 99871)]