21922905

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{829}}^1$

素因数の和:921

約数の個数: 32

約数和(自身を含む): 36812160

約数和(自身を除く): 14889255

約数列:

[1, 3, 5, 15, 41, 43, 123, 129, 205, 215, 615, 645, 829, 1763, 2487, 4145, 5289, 8815, 12435, 26445, 33989, 35647, 101967, 106941, 169945, 178235, 509835, 534705, 1461527, 4384581, 7307635, 21922905]

約数ペア:

[(1, 21922905), (3, 7307635), (5, 4384581), (15, 1461527), (41, 534705), (43, 509835), (123, 178235), (129, 169945), (205, 106941), (215, 101967), (615, 35647), (645, 33989), (829, 26445), (1763, 12435), (2487, 8815), (4145, 5289)]