19644784

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{64621}}^1$

素因数の和:64648

約数の個数: 20

約数和(自身を含む): 40065640

約数和(自身を除く): 20420856

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 64621, 129242, 258484, 516968, 1033936, 1227799, 2455598, 4911196, 9822392, 19644784]

約数ペア:

[(1, 19644784), (2, 9822392), (4, 4911196), (8, 2455598), (16, 1227799), (19, 1033936), (38, 516968), (76, 258484), (152, 129242), (304, 64621)]