19718728

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{3457}}^1$

素因数の和:3517

約数の個数: 32

約数和(自身を含む): 39836160

約数和(自身を除く): 20117432

約数列:

[1, 2, 4, 8, 23, 31, 46, 62, 92, 124, 184, 248, 713, 1426, 2852, 3457, 5704, 6914, 13828, 27656, 79511, 107167, 159022, 214334, 318044, 428668, 636088, 857336, 2464841, 4929682, 9859364, 19718728]

約数ペア:

[(1, 19718728), (2, 9859364), (4, 4929682), (8, 2464841), (23, 857336), (31, 636088), (46, 428668), (62, 318044), (92, 214334), (124, 159022), (184, 107167), (248, 79511), (713, 27656), (1426, 13828), (2852, 6914), (3457, 5704)]