19994938

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{521}}^1\times {\mathrm{619}}^1$

素因数の和:1173

約数の個数: 16

約数和(自身を含む): 31069440

約数和(自身を除く): 11074502

約数列:

[1, 2, 31, 62, 521, 619, 1042, 1238, 16151, 19189, 32302, 38378, 322499, 644998, 9997469, 19994938]

約数ペア:

[(1, 19994938), (2, 9997469), (31, 644998), (62, 322499), (521, 38378), (619, 32302), (1042, 19189), (1238, 16151)]