18919802

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{2113}}^1$

素因数の和:2174

約数の個数: 24

約数和(自身を含む): 32052468

約数和(自身を除く): 13132666

約数列:

[1, 2, 11, 22, 37, 74, 121, 242, 407, 814, 2113, 4226, 4477, 8954, 23243, 46486, 78181, 156362, 255673, 511346, 859991, 1719982, 9459901, 18919802]

約数ペア:

[(1, 18919802), (2, 9459901), (11, 1719982), (22, 859991), (37, 511346), (74, 255673), (121, 156362), (242, 78181), (407, 46486), (814, 23243), (2113, 8954), (4226, 4477)]