28416381

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{229}}^1\times {\mathrm{311}}^1$

素因数の和:569

約数の個数: 32

約数和(自身を含む): 45926400

約数和(自身を除く): 17510019

約数列:

[1, 3, 7, 19, 21, 57, 133, 229, 311, 399, 687, 933, 1603, 2177, 4351, 4809, 5909, 6531, 13053, 17727, 30457, 41363, 71219, 91371, 124089, 213657, 498533, 1353161, 1495599, 4059483, 9472127, 28416381]

約数ペア:

[(1, 28416381), (3, 9472127), (7, 4059483), (19, 1495599), (21, 1353161), (57, 498533), (133, 213657), (229, 124089), (311, 91371), (399, 71219), (687, 41363), (933, 30457), (1603, 17727), (2177, 13053), (4351, 6531), (4809, 5909)]