19918802

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{457}}^1$

素因数の和:546

約数の個数: 32

約数和(自身を含む): 33415680

約数和(自身を除く): 13496878

約数列:

[1, 2, 19, 31, 37, 38, 62, 74, 457, 589, 703, 914, 1147, 1178, 1406, 2294, 8683, 14167, 16909, 17366, 21793, 28334, 33818, 43586, 269173, 321271, 524179, 538346, 642542, 1048358, 9959401, 19918802]

約数ペア:

[(1, 19918802), (2, 9959401), (19, 1048358), (31, 642542), (37, 538346), (38, 524179), (62, 321271), (74, 269173), (457, 43586), (589, 33818), (703, 28334), (914, 21793), (1147, 17366), (1178, 16909), (1406, 14167), (2294, 8683)]