215871388

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{523}}^1\times {\mathrm{5431}}^1$

素因数の和:5977

約数の個数: 24

約数和(自身を含む): 398491520

約数和(自身を除く): 182620132

約数列:

[1, 2, 4, 19, 38, 76, 523, 1046, 2092, 5431, 9937, 10862, 19874, 21724, 39748, 103189, 206378, 412756, 2840413, 5680826, 11361652, 53967847, 107935694, 215871388]

約数ペア:

[(1, 215871388), (2, 107935694), (4, 53967847), (19, 11361652), (38, 5680826), (76, 2840413), (523, 412756), (1046, 206378), (2092, 103189), (5431, 39748), (9937, 21724), (10862, 19874)]