21869872

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{887}}^1$

素因数の和:985

約数の個数: 40

約数和(自身を含む): 44925696

約数和(自身を除く): 23055824

約数列:

[1, 2, 4, 8, 16, 23, 46, 67, 92, 134, 184, 268, 368, 536, 887, 1072, 1541, 1774, 3082, 3548, 6164, 7096, 12328, 14192, 20401, 24656, 40802, 59429, 81604, 118858, 163208, 237716, 326416, 475432, 950864, 1366867, 2733734, 5467468, 10934936, 21869872]

約数ペア:

[(1, 21869872), (2, 10934936), (4, 5467468), (8, 2733734), (16, 1366867), (23, 950864), (46, 475432), (67, 326416), (92, 237716), (134, 163208), (184, 118858), (268, 81604), (368, 59429), (536, 40802), (887, 24656), (1072, 20401), (1541, 14192), (1774, 12328), (3082, 7096), (3548, 6164)]