21103642

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{79337}}^1$

素因数の和:79365

約数の個数: 16

約数和(自身を含む): 38082240

約数和(自身を除く): 16978598

約数列:

[1, 2, 7, 14, 19, 38, 133, 266, 79337, 158674, 555359, 1110718, 1507403, 3014806, 10551821, 21103642]

約数ペア:

[(1, 21103642), (2, 10551821), (7, 3014806), (14, 1507403), (19, 1110718), (38, 555359), (133, 158674), (266, 79337)]