20951536

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{797}}^1$

素因数の和:889

約数の個数: 40

約数和(自身を含む): 42747264

約数和(自身を除く): 21795728

約数列:

[1, 2, 4, 8, 16, 31, 53, 62, 106, 124, 212, 248, 424, 496, 797, 848, 1594, 1643, 3188, 3286, 6376, 6572, 12752, 13144, 24707, 26288, 42241, 49414, 84482, 98828, 168964, 197656, 337928, 395312, 675856, 1309471, 2618942, 5237884, 10475768, 20951536]

約数ペア:

[(1, 20951536), (2, 10475768), (4, 5237884), (8, 2618942), (16, 1309471), (31, 675856), (53, 395312), (62, 337928), (106, 197656), (124, 168964), (212, 98828), (248, 84482), (424, 49414), (496, 42241), (797, 26288), (848, 24707), (1594, 13144), (1643, 12752), (3188, 6572), (3286, 6376)]