221903944

素因数分解:

$2^3\times {\mathrm{109}}^1\times {\mathrm{397}}^1\times {\mathrm{641}}^1$

素因数の和:1153

約数の個数: 32

約数和(自身を含む): 421601400

約数和(自身を除く): 199697456

約数列:

[1, 2, 4, 8, 109, 218, 397, 436, 641, 794, 872, 1282, 1588, 2564, 3176, 5128, 43273, 69869, 86546, 139738, 173092, 254477, 279476, 346184, 508954, 558952, 1017908, 2035816, 27737993, 55475986, 110951972, 221903944]

約数ペア:

[(1, 221903944), (2, 110951972), (4, 55475986), (8, 27737993), (109, 2035816), (218, 1017908), (397, 558952), (436, 508954), (641, 346184), (794, 279476), (872, 254477), (1282, 173092), (1588, 139738), (2564, 86546), (3176, 69869), (5128, 43273)]