21880451656

素因数分解:

$2^3\times 7^1\times {\mathrm{281}}^1\times {\mathrm{1390471}}^1$

素因数の和:1390765

約数の個数: 32

約数和(自身を含む): 47053572480

約数和(自身を除く): 25173120824

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 281, 562, 1124, 1967, 2248, 3934, 7868, 15736, 1390471, 2780942, 5561884, 9733297, 11123768, 19466594, 38933188, 77866376, 390722351, 781444702, 1562889404, 2735056457, 3125778808, 5470112914, 10940225828, 21880451656]

約数ペア:

[(1, 21880451656), (2, 10940225828), (4, 5470112914), (7, 3125778808), (8, 2735056457), (14, 1562889404), (28, 781444702), (56, 390722351), (281, 77866376), (562, 38933188), (1124, 19466594), (1967, 11123768), (2248, 9733297), (3934, 5561884), (7868, 2780942), (15736, 1390471)]