4003984

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{13171}}^1$

素因数の和:13198

約数の個数: 20

約数和(自身を含む): 8166640

約数和(自身を除く): 4162656

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 13171, 26342, 52684, 105368, 210736, 250249, 500498, 1000996, 2001992, 4003984]

約数ペア:

[(1, 4003984), (2, 2001992), (4, 1000996), (8, 500498), (16, 250249), (19, 210736), (38, 105368), (76, 52684), (152, 26342), (304, 13171)]