216918772

素因数分解:

$2^2\times 7^1\times {\mathrm{97}}^1\times {\mathrm{79867}}^1$

素因数の和:79975

約数の個数: 24

約数和(自身を含む): 438315584

約数和(自身を除く): 221396812

約数列:

[1, 2, 4, 7, 14, 28, 97, 194, 388, 679, 1358, 2716, 79867, 159734, 319468, 559069, 1118138, 2236276, 7747099, 15494198, 30988396, 54229693, 108459386, 216918772]

約数ペア:

[(1, 216918772), (2, 108459386), (4, 54229693), (7, 30988396), (14, 15494198), (28, 7747099), (97, 2236276), (194, 1118138), (388, 559069), (679, 319468), (1358, 159734), (2716, 79867)]