18010928

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{661}}^1$

素因数の和:813

約数の個数: 40

約数和(自身を含む): 37924656

約数和(自身を除く): 19913728

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 131, 208, 262, 524, 661, 1048, 1322, 1703, 2096, 2644, 3406, 5288, 6812, 8593, 10576, 13624, 17186, 27248, 34372, 68744, 86591, 137488, 173182, 346364, 692728, 1125683, 1385456, 2251366, 4502732, 9005464, 18010928]

約数ペア:

[(1, 18010928), (2, 9005464), (4, 4502732), (8, 2251366), (13, 1385456), (16, 1125683), (26, 692728), (52, 346364), (104, 173182), (131, 137488), (208, 86591), (262, 68744), (524, 34372), (661, 27248), (1048, 17186), (1322, 13624), (1703, 10576), (2096, 8593), (2644, 6812), (3406, 5288)]