19844768

素因数分解:

$2^5\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{457}}^1$

素因数の和:549

約数の個数: 48

約数和(自身を含む): 41549760

約数和(自身を除く): 21704992

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 59, 92, 118, 184, 236, 368, 457, 472, 736, 914, 944, 1357, 1828, 1888, 2714, 3656, 5428, 7312, 10511, 10856, 14624, 21022, 21712, 26963, 42044, 43424, 53926, 84088, 107852, 168176, 215704, 336352, 431408, 620149, 862816, 1240298, 2480596, 4961192, 9922384, 19844768]

約数ペア:

[(1, 19844768), (2, 9922384), (4, 4961192), (8, 2480596), (16, 1240298), (23, 862816), (32, 620149), (46, 431408), (59, 336352), (92, 215704), (118, 168176), (184, 107852), (236, 84088), (368, 53926), (457, 43424), (472, 42044), (736, 26963), (914, 21712), (944, 21022), (1357, 14624), (1828, 10856), (1888, 10511), (2714, 7312), (3656, 5428)]