21080464

素因数分解:

$2^4\times {\mathrm{59}}^1\times {\mathrm{137}}^1\times {\mathrm{163}}^1$

素因数の和:367

約数の個数: 40

約数和(自身を含む): 42095520

約数和(自身を除く): 21015056

約数列:

[1, 2, 4, 8, 16, 59, 118, 137, 163, 236, 274, 326, 472, 548, 652, 944, 1096, 1304, 2192, 2608, 8083, 9617, 16166, 19234, 22331, 32332, 38468, 44662, 64664, 76936, 89324, 129328, 153872, 178648, 357296, 1317529, 2635058, 5270116, 10540232, 21080464]

約数ペア:

[(1, 21080464), (2, 10540232), (4, 5270116), (8, 2635058), (16, 1317529), (59, 357296), (118, 178648), (137, 153872), (163, 129328), (236, 89324), (274, 76936), (326, 64664), (472, 44662), (548, 38468), (652, 32332), (944, 22331), (1096, 19234), (1304, 16166), (2192, 9617), (2608, 8083)]