19873516

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{7211}}^1$

素因数の和:7281

約数の個数: 24

約数和(自身を含む): 38165904

約数和(自身を除く): 18292388

約数列:

[1, 2, 4, 13, 26, 52, 53, 106, 212, 689, 1378, 2756, 7211, 14422, 28844, 93743, 187486, 374972, 382183, 764366, 1528732, 4968379, 9936758, 19873516]

約数ペア:

[(1, 19873516), (2, 9936758), (4, 4968379), (13, 1528732), (26, 764366), (52, 382183), (53, 374972), (106, 187486), (212, 93743), (689, 28844), (1378, 14422), (2756, 7211)]