21340112

素因数分解:

$2^4\times {\mathrm{79}}^1\times {\mathrm{16883}}^1$

素因数の和:16970

約数の個数: 20

約数和(自身を含む): 41872320

約数和(自身を除く): 20532208

約数列:

[1, 2, 4, 8, 16, 79, 158, 316, 632, 1264, 16883, 33766, 67532, 135064, 270128, 1333757, 2667514, 5335028, 10670056, 21340112]

約数ペア:

[(1, 21340112), (2, 10670056), (4, 5335028), (8, 2667514), (16, 1333757), (79, 270128), (158, 135064), (316, 67532), (632, 33766), (1264, 16883)]