18687344

素因数分解:

$2^4\times {\mathrm{13}}^2\times {\mathrm{6911}}^1$

素因数の和:6945

約数の個数: 30

約数和(自身を含む): 39211776

約数和(自身を除く): 20524432

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 169, 208, 338, 676, 1352, 2704, 6911, 13822, 27644, 55288, 89843, 110576, 179686, 359372, 718744, 1167959, 1437488, 2335918, 4671836, 9343672, 18687344]

約数ペア:

[(1, 18687344), (2, 9343672), (4, 4671836), (8, 2335918), (13, 1437488), (16, 1167959), (26, 718744), (52, 359372), (104, 179686), (169, 110576), (208, 89843), (338, 55288), (676, 27644), (1352, 13822), (2704, 6911)]