28397586

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{107}}^1$

素因数の和:279

約数の個数: 64

約数和(自身を含む): 67184640

約数和(自身を除く): 38787054

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 71, 89, 107, 142, 178, 213, 214, 267, 321, 426, 497, 534, 623, 642, 749, 994, 1246, 1491, 1498, 1869, 2247, 2982, 3738, 4494, 6319, 7597, 9523, 12638, 15194, 18957, 19046, 22791, 28569, 37914, 44233, 45582, 53179, 57138, 66661, 88466, 106358, 132699, 133322, 159537, 199983, 265398, 319074, 399966, 676133, 1352266, 2028399, 4056798, 4732931, 9465862, 14198793, 28397586]

約数ペア:

[(1, 28397586), (2, 14198793), (3, 9465862), (6, 4732931), (7, 4056798), (14, 2028399), (21, 1352266), (42, 676133), (71, 399966), (89, 319074), (107, 265398), (142, 199983), (178, 159537), (213, 133322), (214, 132699), (267, 106358), (321, 88466), (426, 66661), (497, 57138), (534, 53179), (623, 45582), (642, 44233), (749, 37914), (994, 28569), (1246, 22791), (1491, 19046), (1498, 18957), (1869, 15194), (2247, 12638), (2982, 9523), (3738, 7597), (4494, 6319)]