21977816

素因数分解:

$2^3\times 7^1\times {\mathrm{43}}^1\times {\mathrm{9127}}^1$

素因数の和:9183

約数の個数: 32

約数和(自身を含む): 48195840

約数和(自身を除く): 26218024

約数列:

[1, 2, 4, 7, 8, 14, 28, 43, 56, 86, 172, 301, 344, 602, 1204, 2408, 9127, 18254, 36508, 63889, 73016, 127778, 255556, 392461, 511112, 784922, 1569844, 2747227, 3139688, 5494454, 10988908, 21977816]

約数ペア:

[(1, 21977816), (2, 10988908), (4, 5494454), (7, 3139688), (8, 2747227), (14, 1569844), (28, 784922), (43, 511112), (56, 392461), (86, 255556), (172, 127778), (301, 73016), (344, 63889), (602, 36508), (1204, 18254), (2408, 9127)]