19977694

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{173}}^1\times {\mathrm{181}}^1$

素因数の和:396

約数の個数: 32

約数和(自身を含む): 34201440

約数和(自身を除く): 14223746

約数列:

[1, 2, 11, 22, 29, 58, 173, 181, 319, 346, 362, 638, 1903, 1991, 3806, 3982, 5017, 5249, 10034, 10498, 31313, 55187, 57739, 62626, 110374, 115478, 344443, 688886, 908077, 1816154, 9988847, 19977694]

約数ペア:

[(1, 19977694), (2, 9988847), (11, 1816154), (22, 908077), (29, 688886), (58, 344443), (173, 115478), (181, 110374), (319, 62626), (346, 57739), (362, 55187), (638, 31313), (1903, 10498), (1991, 10034), (3806, 5249), (3982, 5017)]