20986657024

素因数分解:

$2^8\times {\mathrm{19}}^2\times {\mathrm{227089}}^1$

素因数の和:227143

約数の個数: 54

約数和(自身を含む): 44212379190

約数和(自身を除く): 23225722166

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 64, 76, 128, 152, 256, 304, 361, 608, 722, 1216, 1444, 2432, 2888, 4864, 5776, 11552, 23104, 46208, 92416, 227089, 454178, 908356, 1816712, 3633424, 4314691, 7266848, 8629382, 14533696, 17258764, 29067392, 34517528, 58134784, 69035056, 81979129, 138070112, 163958258, 276140224, 327916516, 552280448, 655833032, 1104560896, 1311666064, 2623332128, 5246664256, 10493328512, 20986657024]

約数ペア:

[(1, 20986657024), (2, 10493328512), (4, 5246664256), (8, 2623332128), (16, 1311666064), (19, 1104560896), (32, 655833032), (38, 552280448), (64, 327916516), (76, 276140224), (128, 163958258), (152, 138070112), (256, 81979129), (304, 69035056), (361, 58134784), (608, 34517528), (722, 29067392), (1216, 17258764), (1444, 14533696), (2432, 8629382), (2888, 7266848), (4864, 4314691), (5776, 3633424), (11552, 1816712), (23104, 908356), (46208, 454178), (92416, 227089)]