21894184

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{6791}}^1$

素因数の和:6841

約数の個数: 32

約数和(自身を含む): 45642240

約数和(自身を除く): 23748056

約数列:

[1, 2, 4, 8, 13, 26, 31, 52, 62, 104, 124, 248, 403, 806, 1612, 3224, 6791, 13582, 27164, 54328, 88283, 176566, 210521, 353132, 421042, 706264, 842084, 1684168, 2736773, 5473546, 10947092, 21894184]

約数ペア:

[(1, 21894184), (2, 10947092), (4, 5473546), (8, 2736773), (13, 1684168), (26, 842084), (31, 706264), (52, 421042), (62, 353132), (104, 210521), (124, 176566), (248, 88283), (403, 54328), (806, 27164), (1612, 13582), (3224, 6791)]