21868768

素因数分解:

$2^5\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{691}}^1$

素因数の和:767

約数の個数: 48

約数和(自身を含む): 46037376

約数和(自身を除く): 24168608

約数列:

[1, 2, 4, 8, 16, 23, 32, 43, 46, 86, 92, 172, 184, 344, 368, 688, 691, 736, 989, 1376, 1382, 1978, 2764, 3956, 5528, 7912, 11056, 15824, 15893, 22112, 29713, 31648, 31786, 59426, 63572, 118852, 127144, 237704, 254288, 475408, 508576, 683399, 950816, 1366798, 2733596, 5467192, 10934384, 21868768]

約数ペア:

[(1, 21868768), (2, 10934384), (4, 5467192), (8, 2733596), (16, 1366798), (23, 950816), (32, 683399), (43, 508576), (46, 475408), (86, 254288), (92, 237704), (172, 127144), (184, 118852), (344, 63572), (368, 59426), (688, 31786), (691, 31648), (736, 29713), (989, 22112), (1376, 15893), (1382, 15824), (1978, 11056), (2764, 7912), (3956, 5528)]