21923464

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{101}}^1\times {\mathrm{631}}^1$

素因数の和:781

約数の個数: 32

約数和(自身を含む): 42546240

約数和(自身を除く): 20622776

約数列:

[1, 2, 4, 8, 43, 86, 101, 172, 202, 344, 404, 631, 808, 1262, 2524, 4343, 5048, 8686, 17372, 27133, 34744, 54266, 63731, 108532, 127462, 217064, 254924, 509848, 2740433, 5480866, 10961732, 21923464]

約数ペア:

[(1, 21923464), (2, 10961732), (4, 5480866), (8, 2740433), (43, 509848), (86, 254924), (101, 217064), (172, 127462), (202, 108532), (344, 63731), (404, 54266), (631, 34744), (808, 27133), (1262, 17372), (2524, 8686), (4343, 5048)]