18538624

素因数分解:

$2^7\times {\mathrm{13}}^2\times {\mathrm{857}}^1$

素因数の和:897

約数の個数: 48

約数和(自身を含む): 40038570

約数和(自身を除く): 21499946

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 169, 208, 338, 416, 676, 832, 857, 1352, 1664, 1714, 2704, 3428, 5408, 6856, 10816, 11141, 13712, 21632, 22282, 27424, 44564, 54848, 89128, 109696, 144833, 178256, 289666, 356512, 579332, 713024, 1158664, 1426048, 2317328, 4634656, 9269312, 18538624]

約数ペア:

[(1, 18538624), (2, 9269312), (4, 4634656), (8, 2317328), (13, 1426048), (16, 1158664), (26, 713024), (32, 579332), (52, 356512), (64, 289666), (104, 178256), (128, 144833), (169, 109696), (208, 89128), (338, 54848), (416, 44564), (676, 27424), (832, 22282), (857, 21632), (1352, 13712), (1664, 11141), (1714, 10816), (2704, 6856), (3428, 5408)]