21005118

素因数分解:

$2^1\times 3^2\times {\mathrm{23}}^1\times {\mathrm{113}}^1\times {\mathrm{449}}^1$

素因数の和:593

約数の個数: 48

約数和(自身を含む): 48016800

約数和(自身を除く): 27011682

約数列:

[1, 2, 3, 6, 9, 18, 23, 46, 69, 113, 138, 207, 226, 339, 414, 449, 678, 898, 1017, 1347, 2034, 2599, 2694, 4041, 5198, 7797, 8082, 10327, 15594, 20654, 23391, 30981, 46782, 50737, 61962, 92943, 101474, 152211, 185886, 304422, 456633, 913266, 1166951, 2333902, 3500853, 7001706, 10502559, 21005118]

約数ペア:

[(1, 21005118), (2, 10502559), (3, 7001706), (6, 3500853), (9, 2333902), (18, 1166951), (23, 913266), (46, 456633), (69, 304422), (113, 185886), (138, 152211), (207, 101474), (226, 92943), (339, 61962), (414, 50737), (449, 46782), (678, 30981), (898, 23391), (1017, 20654), (1347, 15594), (2034, 10327), (2599, 8082), (2694, 7797), (4041, 5198)]