21198198

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1\times {\mathrm{107}}^1$

素因数の和:261

約数の個数: 64

約数和(自身を含む): 50388480

約数和(自身を除く): 29190282

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 53, 89, 106, 107, 159, 178, 214, 267, 318, 321, 371, 534, 623, 642, 742, 749, 1113, 1246, 1498, 1869, 2226, 2247, 3738, 4494, 4717, 5671, 9434, 9523, 11342, 14151, 17013, 19046, 28302, 28569, 33019, 34026, 39697, 57138, 66038, 66661, 79394, 99057, 119091, 133322, 198114, 199983, 238182, 399966, 504719, 1009438, 1514157, 3028314, 3533033, 7066066, 10599099, 21198198]

約数ペア:

[(1, 21198198), (2, 10599099), (3, 7066066), (6, 3533033), (7, 3028314), (14, 1514157), (21, 1009438), (42, 504719), (53, 399966), (89, 238182), (106, 199983), (107, 198114), (159, 133322), (178, 119091), (214, 99057), (267, 79394), (318, 66661), (321, 66038), (371, 57138), (534, 39697), (623, 34026), (642, 33019), (742, 28569), (749, 28302), (1113, 19046), (1246, 17013), (1498, 14151), (1869, 11342), (2226, 9523), (2247, 9434), (3738, 5671), (4494, 4717)]