21348548

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{571}}^1\times {\mathrm{719}}^1$

素因数の和:1307

約数の個数: 24

約数和(自身を含む): 40360320

約数和(自身を除く): 19011772

約数列:

[1, 2, 4, 13, 26, 52, 571, 719, 1142, 1438, 2284, 2876, 7423, 9347, 14846, 18694, 29692, 37388, 410549, 821098, 1642196, 5337137, 10674274, 21348548]

約数ペア:

[(1, 21348548), (2, 10674274), (4, 5337137), (13, 1642196), (26, 821098), (52, 410549), (571, 37388), (719, 29692), (1142, 18694), (1438, 14846), (2284, 9347), (2876, 7423)]