21819088

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{211}}^1\times {\mathrm{281}}^1$

素因数の和:523

約数の個数: 40

約数和(自身を含む): 44479296

約数和(自身を除く): 22660208

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 184, 211, 281, 368, 422, 562, 844, 1124, 1688, 2248, 3376, 4496, 4853, 6463, 9706, 12926, 19412, 25852, 38824, 51704, 59291, 77648, 103408, 118582, 237164, 474328, 948656, 1363693, 2727386, 5454772, 10909544, 21819088]

約数ペア:

[(1, 21819088), (2, 10909544), (4, 5454772), (8, 2727386), (16, 1363693), (23, 948656), (46, 474328), (92, 237164), (184, 118582), (211, 103408), (281, 77648), (368, 59291), (422, 51704), (562, 38824), (844, 25852), (1124, 19412), (1688, 12926), (2248, 9706), (3376, 6463), (4496, 4853)]