19969008

素因数分解:

$2^4\times 3^1\times {\mathrm{643}}^1\times {\mathrm{647}}^1$

素因数の和:1301

約数の個数: 40

約数和(自身を含む): 51746688

約数和(自身を除く): 31777680

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 643, 647, 1286, 1294, 1929, 1941, 2572, 2588, 3858, 3882, 5144, 5176, 7716, 7764, 10288, 10352, 15432, 15528, 30864, 31056, 416021, 832042, 1248063, 1664084, 2496126, 3328168, 4992252, 6656336, 9984504, 19969008]

約数ペア:

[(1, 19969008), (2, 9984504), (3, 6656336), (4, 4992252), (6, 3328168), (8, 2496126), (12, 1664084), (16, 1248063), (24, 832042), (48, 416021), (643, 31056), (647, 30864), (1286, 15528), (1294, 15432), (1929, 10352), (1941, 10288), (2572, 7764), (2588, 7716), (3858, 5176), (3882, 5144)]