21868912

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{2237}}^1$

素因数の和:2305

約数の個数: 40

約数和(自身を含む): 46622016

約数和(自身を除く): 24753104

約数列:

[1, 2, 4, 8, 13, 16, 26, 47, 52, 94, 104, 188, 208, 376, 611, 752, 1222, 2237, 2444, 4474, 4888, 8948, 9776, 17896, 29081, 35792, 58162, 105139, 116324, 210278, 232648, 420556, 465296, 841112, 1366807, 1682224, 2733614, 5467228, 10934456, 21868912]

約数ペア:

[(1, 21868912), (2, 10934456), (4, 5467228), (8, 2733614), (13, 1682224), (16, 1366807), (26, 841112), (47, 465296), (52, 420556), (94, 232648), (104, 210278), (188, 116324), (208, 105139), (376, 58162), (611, 35792), (752, 29081), (1222, 17896), (2237, 9776), (2444, 8948), (4474, 4888)]