18380888

素因数分解:

$2^3\times {\mathrm{107}}^1\times {\mathrm{109}}^1\times {\mathrm{197}}^1$

素因数の和:419

約数の個数: 32

約数和(自身を含む): 35283600

約数和(自身を除く): 16902712

約数列:

[1, 2, 4, 8, 107, 109, 197, 214, 218, 394, 428, 436, 788, 856, 872, 1576, 11663, 21079, 21473, 23326, 42158, 42946, 46652, 84316, 85892, 93304, 168632, 171784, 2297611, 4595222, 9190444, 18380888]

約数ペア:

[(1, 18380888), (2, 9190444), (4, 4595222), (8, 2297611), (107, 171784), (109, 168632), (197, 93304), (214, 85892), (218, 84316), (394, 46652), (428, 42946), (436, 42158), (788, 23326), (856, 21473), (872, 21079), (1576, 11663)]