21559760

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{9293}}^1$

素因数の和:9335

約数の個数: 40

約数和(自身を含む): 51860520

約数和(自身を除く): 30300760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 80, 116, 145, 232, 290, 464, 580, 1160, 2320, 9293, 18586, 37172, 46465, 74344, 92930, 148688, 185860, 269497, 371720, 538994, 743440, 1077988, 1347485, 2155976, 2694970, 4311952, 5389940, 10779880, 21559760]

約数ペア:

[(1, 21559760), (2, 10779880), (4, 5389940), (5, 4311952), (8, 2694970), (10, 2155976), (16, 1347485), (20, 1077988), (29, 743440), (40, 538994), (58, 371720), (80, 269497), (116, 185860), (145, 148688), (232, 92930), (290, 74344), (464, 46465), (580, 37172), (1160, 18586), (2320, 9293)]