18890572

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{109}}^1\times {\mathrm{1171}}^1$

素因数の和:1321

約数の個数: 24

約数和(自身を含む): 34292720

約数和(自身を除く): 15402148

約数列:

[1, 2, 4, 37, 74, 109, 148, 218, 436, 1171, 2342, 4033, 4684, 8066, 16132, 43327, 86654, 127639, 173308, 255278, 510556, 4722643, 9445286, 18890572]

約数ペア:

[(1, 18890572), (2, 9445286), (4, 4722643), (37, 510556), (74, 255278), (109, 173308), (148, 127639), (218, 86654), (436, 43327), (1171, 16132), (2342, 8066), (4033, 4684)]