21417212

素因数分解:

$2^2\times {\mathrm{17}}^2\times {\mathrm{97}}^1\times {\mathrm{191}}^1$

素因数の和:326

約数の個数: 36

約数和(自身を含む): 40435584

約数和(自身を除く): 19018372

約数列:

[1, 2, 4, 17, 34, 68, 97, 191, 194, 289, 382, 388, 578, 764, 1156, 1649, 3247, 3298, 6494, 6596, 12988, 18527, 28033, 37054, 55199, 56066, 74108, 110398, 112132, 220796, 314959, 629918, 1259836, 5354303, 10708606, 21417212]

約数ペア:

[(1, 21417212), (2, 10708606), (4, 5354303), (17, 1259836), (34, 629918), (68, 314959), (97, 220796), (191, 112132), (194, 110398), (289, 74108), (382, 56066), (388, 55199), (578, 37054), (764, 28033), (1156, 18527), (1649, 12988), (3247, 6596), (3298, 6494)]