28620039

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{107}}^1\times {\mathrm{271}}^1$

素因数の和:435

約数の個数: 32

約数和(自身を含む): 45121536

約数和(自身を除く): 16501497

約数列:

[1, 3, 7, 21, 47, 107, 141, 271, 321, 329, 749, 813, 987, 1897, 2247, 5029, 5691, 12737, 15087, 28997, 35203, 38211, 86991, 89159, 105609, 202979, 267477, 608937, 1362859, 4088577, 9540013, 28620039]

約数ペア:

[(1, 28620039), (3, 9540013), (7, 4088577), (21, 1362859), (47, 608937), (107, 267477), (141, 202979), (271, 105609), (321, 89159), (329, 86991), (749, 38211), (813, 35203), (987, 28997), (1897, 15087), (2247, 12737), (5029, 5691)]