28437129

素因数分解:

$3^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{7919}}^1$

素因数の和:7954

約数の個数: 32

約数和(自身を含む): 50688000

約数和(自身を除く): 22250871

約数列:

[1, 3, 7, 9, 19, 21, 27, 57, 63, 133, 171, 189, 399, 513, 1197, 3591, 7919, 23757, 55433, 71271, 150461, 166299, 213813, 451383, 498897, 1053227, 1354149, 1496691, 3159681, 4062447, 9479043, 28437129]

約数ペア:

[(1, 28437129), (3, 9479043), (7, 4062447), (9, 3159681), (19, 1496691), (21, 1354149), (27, 1053227), (57, 498897), (63, 451383), (133, 213813), (171, 166299), (189, 150461), (399, 71271), (513, 55433), (1197, 23757), (3591, 7919)]