21371941

素因数分解:

${\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{521}}^1$

素因数の和:684

約数の個数: 16

約数和(自身を含む): 24053760

約数和(自身を除く): 2681819

約数列:

[1, 17, 19, 127, 323, 521, 2159, 2413, 8857, 9899, 41021, 66167, 168283, 1124839, 1257173, 21371941]

約数ペア:

[(1, 21371941), (17, 1257173), (19, 1124839), (127, 168283), (323, 66167), (521, 41021), (2159, 9899), (2413, 8857)]