20912784

素因数分解:

$2^4\times 3^1\times {\mathrm{463}}^1\times {\mathrm{941}}^1$

素因数の和:1415

約数の個数: 40

約数和(自身を含む): 54198912

約数和(自身を除く): 33286128

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 463, 926, 941, 1389, 1852, 1882, 2778, 2823, 3704, 3764, 5556, 5646, 7408, 7528, 11112, 11292, 15056, 22224, 22584, 45168, 435683, 871366, 1307049, 1742732, 2614098, 3485464, 5228196, 6970928, 10456392, 20912784]

約数ペア:

[(1, 20912784), (2, 10456392), (3, 6970928), (4, 5228196), (6, 3485464), (8, 2614098), (12, 1742732), (16, 1307049), (24, 871366), (48, 435683), (463, 45168), (926, 22584), (941, 22224), (1389, 15056), (1852, 11292), (1882, 11112), (2778, 7528), (2823, 7408), (3704, 5646), (3764, 5556)]