21531392

素因数分解:

$2^8\times {\mathrm{151}}^1\times {\mathrm{557}}^1$

素因数の和:724

約数の個数: 36

約数和(自身を含む): 43340976

約数和(自身を除く): 21809584

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 151, 256, 302, 557, 604, 1114, 1208, 2228, 2416, 4456, 4832, 8912, 9664, 17824, 19328, 35648, 38656, 71296, 84107, 142592, 168214, 336428, 672856, 1345712, 2691424, 5382848, 10765696, 21531392]

約数ペア:

[(1, 21531392), (2, 10765696), (4, 5382848), (8, 2691424), (16, 1345712), (32, 672856), (64, 336428), (128, 168214), (151, 142592), (256, 84107), (302, 71296), (557, 38656), (604, 35648), (1114, 19328), (1208, 17824), (2228, 9664), (2416, 8912), (4456, 4832)]