21730490

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{114371}}^1$

素因数の和:114397

約数の個数: 16

約数和(自身を含む): 41173920

約数和(自身を除く): 19443430

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 114371, 228742, 571855, 1143710, 2173049, 4346098, 10865245, 21730490]

約数ペア:

[(1, 21730490), (2, 10865245), (5, 4346098), (10, 2173049), (19, 1143710), (38, 571855), (95, 228742), (190, 114371)]