21038650

素因数分解:

$2^1\times 5^2\times {\mathrm{191}}^1\times {\mathrm{2203}}^1$

素因数の和:2406

約数の個数: 24

約数和(自身を含む): 39354624

約数和(自身を除く): 18315974

約数列:

[1, 2, 5, 10, 25, 50, 191, 382, 955, 1910, 2203, 4406, 4775, 9550, 11015, 22030, 55075, 110150, 420773, 841546, 2103865, 4207730, 10519325, 21038650]

約数ペア:

[(1, 21038650), (2, 10519325), (5, 4207730), (10, 2103865), (25, 841546), (50, 420773), (191, 110150), (382, 55075), (955, 22030), (1910, 11015), (2203, 9550), (4406, 4775)]