19956564

素因数分解:

$2^2\times 3^3\times {\mathrm{257}}^1\times {\mathrm{719}}^1$

素因数の和:989

約数の個数: 48

約数和(自身を含む): 52012800

約数和(自身を除く): 32056236

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108, 257, 514, 719, 771, 1028, 1438, 1542, 2157, 2313, 2876, 3084, 4314, 4626, 6471, 6939, 8628, 9252, 12942, 13878, 19413, 25884, 27756, 38826, 77652, 184783, 369566, 554349, 739132, 1108698, 1663047, 2217396, 3326094, 4989141, 6652188, 9978282, 19956564]

約数ペア:

[(1, 19956564), (2, 9978282), (3, 6652188), (4, 4989141), (6, 3326094), (9, 2217396), (12, 1663047), (18, 1108698), (27, 739132), (36, 554349), (54, 369566), (108, 184783), (257, 77652), (514, 38826), (719, 27756), (771, 25884), (1028, 19413), (1438, 13878), (1542, 12942), (2157, 9252), (2313, 8628), (2876, 6939), (3084, 6471), (4314, 4626)]