19997914

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{7867}}^1$

素因数の和:7941

約数の個数: 16

約数和(自身を含む): 31723776

約数和(自身を除く): 11725862

約数列:

[1, 2, 31, 41, 62, 82, 1271, 2542, 7867, 15734, 243877, 322547, 487754, 645094, 9998957, 19997914]

約数ペア:

[(1, 19997914), (2, 9998957), (31, 645094), (41, 487754), (62, 322547), (82, 243877), (1271, 15734), (2542, 7867)]