19957644

素因数分解:

$2^2\times 3^3\times 7^1\times {\mathrm{26399}}^1$

素因数の和:26419

約数の個数: 48

約数和(自身を含む): 59136000

約数和(自身を除く): 39178356

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 54, 63, 84, 108, 126, 189, 252, 378, 756, 26399, 52798, 79197, 105596, 158394, 184793, 237591, 316788, 369586, 475182, 554379, 712773, 739172, 950364, 1108758, 1425546, 1663137, 2217516, 2851092, 3326274, 4989411, 6652548, 9978822, 19957644]

約数ペア:

[(1, 19957644), (2, 9978822), (3, 6652548), (4, 4989411), (6, 3326274), (7, 2851092), (9, 2217516), (12, 1663137), (14, 1425546), (18, 1108758), (21, 950364), (27, 739172), (28, 712773), (36, 554379), (42, 475182), (54, 369586), (63, 316788), (84, 237591), (108, 184793), (126, 158394), (189, 105596), (252, 79197), (378, 52798), (756, 26399)]