21915136

素因数分解:

$2^9\times {\mathrm{23}}^1\times {\mathrm{1861}}^1$

素因数の和:1902

約数の個数: 40

約数和(自身を含む): 45715824

約数和(自身を除く): 23800688

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 64, 92, 128, 184, 256, 368, 512, 736, 1472, 1861, 2944, 3722, 5888, 7444, 11776, 14888, 29776, 42803, 59552, 85606, 119104, 171212, 238208, 342424, 476416, 684848, 952832, 1369696, 2739392, 5478784, 10957568, 21915136]

約数ペア:

[(1, 21915136), (2, 10957568), (4, 5478784), (8, 2739392), (16, 1369696), (23, 952832), (32, 684848), (46, 476416), (64, 342424), (92, 238208), (128, 171212), (184, 119104), (256, 85606), (368, 59552), (512, 42803), (736, 29776), (1472, 14888), (1861, 11776), (2944, 7444), (3722, 5888)]