21385860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{15497}}^1$

素因数の和:15532

約数の個数: 48

約数和(自身を含む): 62487936

約数和(自身を除く): 41102076

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 30, 46, 60, 69, 92, 115, 138, 230, 276, 345, 460, 690, 1380, 15497, 30994, 46491, 61988, 77485, 92982, 154970, 185964, 232455, 309940, 356431, 464910, 712862, 929820, 1069293, 1425724, 1782155, 2138586, 3564310, 4277172, 5346465, 7128620, 10692930, 21385860]

約数ペア:

[(1, 21385860), (2, 10692930), (3, 7128620), (4, 5346465), (5, 4277172), (6, 3564310), (10, 2138586), (12, 1782155), (15, 1425724), (20, 1069293), (23, 929820), (30, 712862), (46, 464910), (60, 356431), (69, 309940), (92, 232455), (115, 185964), (138, 154970), (230, 92982), (276, 77485), (345, 61988), (460, 46491), (690, 30994), (1380, 15497)]