21494512

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{4493}}^1$

素因数の和:4537

約数の個数: 40

約数和(自身を含む): 46809504

約数和(自身を除く): 25314992

約数列:

[1, 2, 4, 8, 13, 16, 23, 26, 46, 52, 92, 104, 184, 208, 299, 368, 598, 1196, 2392, 4493, 4784, 8986, 17972, 35944, 58409, 71888, 103339, 116818, 206678, 233636, 413356, 467272, 826712, 934544, 1343407, 1653424, 2686814, 5373628, 10747256, 21494512]

約数ペア:

[(1, 21494512), (2, 10747256), (4, 5373628), (8, 2686814), (13, 1653424), (16, 1343407), (23, 934544), (26, 826712), (46, 467272), (52, 413356), (92, 233636), (104, 206678), (184, 116818), (208, 103339), (299, 71888), (368, 58409), (598, 35944), (1196, 17972), (2392, 8986), (4493, 4784)]