21093392

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^2$

素因数の和:148

約数の個数: 60

約数和(自身を含む): 45068544

約数和(自身を除く): 23975152

約数列:

[1, 2, 4, 8, 16, 23, 31, 43, 46, 62, 86, 92, 124, 172, 184, 248, 344, 368, 496, 688, 713, 989, 1333, 1426, 1849, 1978, 2666, 2852, 3698, 3956, 5332, 5704, 7396, 7912, 10664, 11408, 14792, 15824, 21328, 29584, 30659, 42527, 57319, 61318, 85054, 114638, 122636, 170108, 229276, 245272, 340216, 458552, 490544, 680432, 917104, 1318337, 2636674, 5273348, 10546696, 21093392]

約数ペア:

[(1, 21093392), (2, 10546696), (4, 5273348), (8, 2636674), (16, 1318337), (23, 917104), (31, 680432), (43, 490544), (46, 458552), (62, 340216), (86, 245272), (92, 229276), (124, 170108), (172, 122636), (184, 114638), (248, 85054), (344, 61318), (368, 57319), (496, 42527), (688, 30659), (713, 29584), (989, 21328), (1333, 15824), (1426, 14792), (1849, 11408), (1978, 10664), (2666, 7912), (2852, 7396), (3698, 5704), (3956, 5332)]