19855628

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{271}}^1\times {\mathrm{1409}}^1$

素因数の和:1697

約数の個数: 24

約数和(自身を含む): 37584960

約数和(自身を除く): 17729332

約数列:

[1, 2, 4, 13, 26, 52, 271, 542, 1084, 1409, 2818, 3523, 5636, 7046, 14092, 18317, 36634, 73268, 381839, 763678, 1527356, 4963907, 9927814, 19855628]

約数ペア:

[(1, 19855628), (2, 9927814), (4, 4963907), (13, 1527356), (26, 763678), (52, 381839), (271, 73268), (542, 36634), (1084, 18317), (1409, 14092), (2818, 7046), (3523, 5636)]