18879328

素因数分解:

$2^5\times {\mathrm{13}}^2\times {\mathrm{3491}}^1$

素因数の和:3527

約数の個数: 36

約数和(自身を含む): 40259268

約数和(自身を除く): 21379940

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 169, 208, 338, 416, 676, 1352, 2704, 3491, 5408, 6982, 13964, 27928, 45383, 55856, 90766, 111712, 181532, 363064, 589979, 726128, 1179958, 1452256, 2359916, 4719832, 9439664, 18879328]

約数ペア:

[(1, 18879328), (2, 9439664), (4, 4719832), (8, 2359916), (13, 1452256), (16, 1179958), (26, 726128), (32, 589979), (52, 363064), (104, 181532), (169, 111712), (208, 90766), (338, 55856), (416, 45383), (676, 27928), (1352, 13964), (2704, 6982), (3491, 5408)]