21609992

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{8363}}^1$

素因数の和:8405

約数の個数: 32

約数和(自身を含む): 45165600

約数和(自身を除く): 23555608

約数列:

[1, 2, 4, 8, 17, 19, 34, 38, 68, 76, 136, 152, 323, 646, 1292, 2584, 8363, 16726, 33452, 66904, 142171, 158897, 284342, 317794, 568684, 635588, 1137368, 1271176, 2701249, 5402498, 10804996, 21609992]

約数ペア:

[(1, 21609992), (2, 10804996), (4, 5402498), (8, 2701249), (17, 1271176), (19, 1137368), (34, 635588), (38, 568684), (68, 317794), (76, 284342), (136, 158897), (152, 142171), (323, 66904), (646, 33452), (1292, 16726), (2584, 8363)]