21309032

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{140191}}^1$

素因数の和:140216

約数の個数: 16

約数和(自身を含む): 42057600

約数和(自身を除く): 20748568

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 140191, 280382, 560764, 1121528, 2663629, 5327258, 10654516, 21309032]

約数ペア:

[(1, 21309032), (2, 10654516), (4, 5327258), (8, 2663629), (19, 1121528), (38, 560764), (76, 280382), (152, 140191)]