21658968

素因数分解:

$2^3\times 3^3\times {\mathrm{197}}^1\times {\mathrm{509}}^1$

素因数の和:721

約数の個数: 64

約数和(自身を含む): 60588000

約数和(自身を除く): 38929032

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 108, 197, 216, 394, 509, 591, 788, 1018, 1182, 1527, 1576, 1773, 2036, 2364, 3054, 3546, 4072, 4581, 4728, 5319, 6108, 7092, 9162, 10638, 12216, 13743, 14184, 18324, 21276, 27486, 36648, 42552, 54972, 100273, 109944, 200546, 300819, 401092, 601638, 802184, 902457, 1203276, 1804914, 2406552, 2707371, 3609828, 5414742, 7219656, 10829484, 21658968]

約数ペア:

[(1, 21658968), (2, 10829484), (3, 7219656), (4, 5414742), (6, 3609828), (8, 2707371), (9, 2406552), (12, 1804914), (18, 1203276), (24, 902457), (27, 802184), (36, 601638), (54, 401092), (72, 300819), (108, 200546), (197, 109944), (216, 100273), (394, 54972), (509, 42552), (591, 36648), (788, 27486), (1018, 21276), (1182, 18324), (1527, 14184), (1576, 13743), (1773, 12216), (2036, 10638), (2364, 9162), (3054, 7092), (3546, 6108), (4072, 5319), (4581, 4728)]