18900595

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{443}}^1$

素因数の和:531

約数の個数: 32

約数和(自身を含む): 27620352

約数和(自身を除く): 8719757

約数列:

[1, 5, 7, 23, 35, 53, 115, 161, 265, 371, 443, 805, 1219, 1855, 2215, 3101, 6095, 8533, 10189, 15505, 23479, 42665, 50945, 71323, 117395, 164353, 356615, 540017, 821765, 2700085, 3780119, 18900595]

約数ペア:

[(1, 18900595), (5, 3780119), (7, 2700085), (23, 821765), (35, 540017), (53, 356615), (115, 164353), (161, 117395), (265, 71323), (371, 50945), (443, 42665), (805, 23479), (1219, 15505), (1855, 10189), (2215, 8533), (3101, 6095)]