207138729

素因数分解:

$3^1\times 7^3\times {\mathrm{47}}^1\times {\mathrm{4283}}^1$

素因数の和:4354

約数の個数: 32

約数和(自身を含む): 329011200

約数和(自身を除く): 121872471

約数列:

[1, 3, 7, 21, 47, 49, 141, 147, 329, 343, 987, 1029, 2303, 4283, 6909, 12849, 16121, 29981, 48363, 89943, 201301, 209867, 603903, 629601, 1409107, 1469069, 4227321, 4407207, 9863749, 29591247, 69046243, 207138729]

約数ペア:

[(1, 207138729), (3, 69046243), (7, 29591247), (21, 9863749), (47, 4407207), (49, 4227321), (141, 1469069), (147, 1409107), (329, 629601), (343, 603903), (987, 209867), (1029, 201301), (2303, 89943), (4283, 48363), (6909, 29981), (12849, 16121)]