19914856

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{3613}}^1$

素因数の和:3685

約数の個数: 32

約数和(自身を含む): 40982760

約数和(自身を除く): 21067904

約数列:

[1, 2, 4, 8, 13, 26, 52, 53, 104, 106, 212, 424, 689, 1378, 2756, 3613, 5512, 7226, 14452, 28904, 46969, 93938, 187876, 191489, 375752, 382978, 765956, 1531912, 2489357, 4978714, 9957428, 19914856]

約数ペア:

[(1, 19914856), (2, 9957428), (4, 4978714), (8, 2489357), (13, 1531912), (26, 765956), (52, 382978), (53, 375752), (104, 191489), (106, 187876), (212, 93938), (424, 46969), (689, 28904), (1378, 14452), (2756, 7226), (3613, 5512)]