318206438

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{431}}^1\times {\mathrm{907}}^1$

素因数の和:1388

約数の個数: 32

約数和(自身を含む): 536606208

約数和(自身を除く): 218399770

約数列:

[1, 2, 11, 22, 37, 74, 407, 431, 814, 862, 907, 1814, 4741, 9482, 9977, 15947, 19954, 31894, 33559, 67118, 175417, 350834, 369149, 390917, 738298, 781834, 4300087, 8600174, 14463929, 28927858, 159103219, 318206438]

約数ペア:

[(1, 318206438), (2, 159103219), (11, 28927858), (22, 14463929), (37, 8600174), (74, 4300087), (407, 781834), (431, 738298), (814, 390917), (862, 369149), (907, 350834), (1814, 175417), (4741, 67118), (9482, 33559), (9977, 31894), (15947, 19954)]