19981936

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{5651}}^1$

素因数の和:5689

約数の個数: 40

約数和(自身を含む): 44153424

約数和(自身を除く): 24171488

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 34, 52, 68, 104, 136, 208, 221, 272, 442, 884, 1768, 3536, 5651, 11302, 22604, 45208, 73463, 90416, 96067, 146926, 192134, 293852, 384268, 587704, 768536, 1175408, 1248871, 1537072, 2497742, 4995484, 9990968, 19981936]

約数ペア:

[(1, 19981936), (2, 9990968), (4, 4995484), (8, 2497742), (13, 1537072), (16, 1248871), (17, 1175408), (26, 768536), (34, 587704), (52, 384268), (68, 293852), (104, 192134), (136, 146926), (208, 96067), (221, 90416), (272, 73463), (442, 45208), (884, 22604), (1768, 11302), (3536, 5651)]