21253638

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{17}}^3\times {\mathrm{103}}^1$

素因数の和:166

約数の個数: 64

約数和(自身を含む): 52116480

約数和(自身を除く): 30862842

約数列:

[1, 2, 3, 6, 7, 14, 17, 21, 34, 42, 51, 102, 103, 119, 206, 238, 289, 309, 357, 578, 618, 714, 721, 867, 1442, 1734, 1751, 2023, 2163, 3502, 4046, 4326, 4913, 5253, 6069, 9826, 10506, 12138, 12257, 14739, 24514, 29478, 29767, 34391, 36771, 59534, 68782, 73542, 89301, 103173, 178602, 206346, 208369, 416738, 506039, 625107, 1012078, 1250214, 1518117, 3036234, 3542273, 7084546, 10626819, 21253638]

約数ペア:

[(1, 21253638), (2, 10626819), (3, 7084546), (6, 3542273), (7, 3036234), (14, 1518117), (17, 1250214), (21, 1012078), (34, 625107), (42, 506039), (51, 416738), (102, 208369), (103, 206346), (119, 178602), (206, 103173), (238, 89301), (289, 73542), (309, 68782), (357, 59534), (578, 36771), (618, 34391), (714, 29767), (721, 29478), (867, 24514), (1442, 14739), (1734, 12257), (1751, 12138), (2023, 10506), (2163, 9826), (3502, 6069), (4046, 5253), (4326, 4913)]