18341908

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{631}}^1$

素因数の和:704

約数の個数: 36

約数和(自身を含む): 35622048

約数和(自身を除く): 17280140

約数列:

[1, 2, 4, 13, 26, 43, 52, 86, 169, 172, 338, 559, 631, 676, 1118, 1262, 2236, 2524, 7267, 8203, 14534, 16406, 27133, 29068, 32812, 54266, 106639, 108532, 213278, 352729, 426556, 705458, 1410916, 4585477, 9170954, 18341908]

約数ペア:

[(1, 18341908), (2, 9170954), (4, 4585477), (13, 1410916), (26, 705458), (43, 426556), (52, 352729), (86, 213278), (169, 108532), (172, 106639), (338, 54266), (559, 32812), (631, 29068), (676, 27133), (1118, 16406), (1262, 14534), (2236, 8203), (2524, 7267)]