215303851

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{769}}^1$

素因数の和:883

約数の個数: 32

約数和(自身を含む): 269660160

約数和(自身を除く): 54356309

約数列:

[1, 7, 23, 37, 47, 161, 259, 329, 769, 851, 1081, 1739, 5383, 5957, 7567, 12173, 17687, 28453, 36143, 39997, 123809, 199171, 253001, 279979, 654419, 831289, 1337291, 4580933, 5819023, 9361037, 30757693, 215303851]

約数ペア:

[(1, 215303851), (7, 30757693), (23, 9361037), (37, 5819023), (47, 4580933), (161, 1337291), (259, 831289), (329, 654419), (769, 279979), (851, 253001), (1081, 199171), (1739, 123809), (5383, 39997), (5957, 36143), (7567, 28453), (12173, 17687)]