19993472564

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{409}}^1\times {\mathrm{940073}}^1$

素因数の和:940499

約数の個数: 24

約数和(自身を含む): 37772173320

約数和(自身を除く): 17778700756

約数列:

[1, 2, 4, 13, 26, 52, 409, 818, 1636, 5317, 10634, 21268, 940073, 1880146, 3760292, 12220949, 24441898, 48883796, 384489857, 768979714, 1537959428, 4998368141, 9996736282, 19993472564]

約数ペア:

[(1, 19993472564), (2, 9996736282), (4, 4998368141), (13, 1537959428), (26, 768979714), (52, 384489857), (409, 48883796), (818, 24441898), (1636, 12220949), (5317, 3760292), (10634, 1880146), (21268, 940073)]